VIVOHOME Products

The VIVOHOME 1.5 HP 14.4 CFM Dual-Stage Vacuum Pump Kit is engineered for HVAC contractors, automotive technicians, and serious DIY mechanics who service air conditioning and refrigeration systems. With a dual-stage pump mechanism, this setup delivers the speed and ultimate vacuum depth required for automotive AC recharge, residential mini-splits, and larger commercial refrigeration circuits.

Performance is the highlight of this system. Driven by a 1.5 HP pure copper motor, the pump pushes a 14.4 CFM flow rate that pulls systems down to 0.2 Pa quickly and efficiently. The integrated gas ballast valve allows condensable vapors to exhaust before mixing with the vacuum oil, maintaining optimal vacuum performance over extended cycles. Combined with the 4-way manifold gauge set, technicians can pull a vacuum, test for holding pressure, and recharge refrigerant without constantly swapping hose connections.

In terms of durability and safety, VIVOHOME built this unit with a rigid aluminum alloy housing and an anti-backflow system that prevents lubricant from contaminating AC lines. The cooling architecture combines T-shaped motor fins, mesh venting, and an internal cooling fan to keep temperatures in check during continuous runs, while internal filtration limits oil mist exhaust and keeps noise levels below 70 dB.

The primary tradeoff for this level of performance is portability, as the complete pump weighs approximately 44 pounds. Additionally, the included electronic leak detector requires two C batteries that are not in the box. Overall, this vacuum pump and manifold set provides exceptional pumping speed, broad refrigerant support, and a complete accessory package that represents tremendous value for demanding service jobs.

Motor Power: 1.5 HP Pure Copper Motor

Flow Rate: 14.4 CFM

Ultimate Vacuum: 0.2 Pa (Dual-Stage)

Refrigerant Compatibility: R134a, R12, R22, R410a

Noise Level: Under 70 dB

Product Weight: 44 lbs

Included Accessories: 4-way manifold gauge, 4 color-coded hoses, electronic leak detector, 2 R134a quick couplers, 3 fitting adapters, 2 can taps (piercing/self-sealing), 2 bottles vacuum oil (330ml each), blow-molded gauge case

The VIVOHOME 1/3 HP 4 CFM AC Vacuum Pump and 4-Way Gauge Set (model VH1690) is designed as a complete, out-of-the-box solution for automotive air conditioning maintenance, residential mini-split installations, and small appliance refrigeration repairs. By packaging the single-stage pump together with a 4-way manifold gauge, color-coded high-pressure hoses, an electronic leak detector, can taps, and pump oil, VIVOHOME targets DIY homeowners and mobile technicians looking to avoid piecemeal tool purchases.

Under the hood, the vacuum pump utilizes a four-pole pure copper motor operating at 1440 RPM to deliver a 4 CFM displacement rate. In practical tests, the single-stage mechanism reliably evacuates moisture and non-condensables from ductless mini-split lines and car AC systems down to the required vacuum depths. The 4-way manifold is a standout upgrade over typical 3-way budget gauges, giving users dedicated ports for high pressure, low pressure, vacuum pump, and refrigerant lines simultaneously to minimize line swapping and air contamination.

From a build standpoint, the pump features a die-cast one-piece housing that minimizes potential oil leak paths, paired with mesh side vents that promote steady airflow during continuous operation. The large oil sight glass makes checking lubrication levels simple, while an internal check valve safeguards the AC system against oil backflow in the event of power loss. The included high-pressure hoses carry an 800 PSI working rating and 4000 PSI burst rating, providing adequate safety margins for modern high-pressure refrigerants like R410a.

While the kit delivers exceptional value, there are a few practical considerations. As a single-stage pump, it will require a bit more run time to reach deep micron levels on larger multi-zone systems compared to industrial dual-stage pumps. Additionally, the included electronic leak detector is sensitive and requires slow, deliberate movement along lines to avoid false triggers from drafts or rapid temperature changes. Overall, the VIVOHOME VH1690 package offers dependable build quality, accurate analog gauges, and reliable performance that makes home AC installations and vehicle recharging straightforward and cost-effective.

Motor Power: 1/3 HP Pure Copper Motor

Free Air Displacement: 4 CFM

Operating Speed: 1440 RPM

Pump Design: Single-Stage Rotary Vane

Manifold Type: 4-Way High-Precision Mechanical Gauge

Hose Pressure Ratings: 800 PSI Working / 4000 PSI Burst

Refrigerant Compatibility: R134a, R410a, R22, R12, R502

Included Accessories: 4 Color-Coded Hoses, Electronic Leak Detector, 2x R134a Quick Couplers, 2x Can Taps (Self-Sealing and Puncture), 2x R410a Adapters (1/4 to 5/16 inch), SAE Adapter, 330 ml Vacuum Pump Oil, Storage Carrying Case

The VIVOHOME 1/4 HP 3.5 CFM Single Stage Vacuum Pump (Model VH1479) is a compact, entry-level vacuum pump tailored for automotive DIYers, home HVAC hobbyists, and craftspeople working with epoxy resin. Delivering a 3.5 CFM flow rate and capable of pulling systems down to 5 Pa (approximately 29 inHg), it offers a cost-effective solution for evacuating moisture and air prior to refrigerant charging.

At the heart of the unit is a high-torque pure copper motor protected by internal overheating safeguards. To keep operating temperatures low during prolonged cycles, VIVOHOME integrated T-shaped cooling fins, mesh vents, and a high-power internal fan. Real-world applications show swift pull-down times on automotive R134a systems as well as reliable air removal in small vacuum chambers used for degassing silicone or resin projects.

Encased in a die-cast aluminum housing, the pump strikes a practical balance between rugged durability and everyday portability at just 11.2 pounds. A non-slip rubber base dampens motor vibration to keep work surfaces steady and noise levels remarkably low. User maintenance is straightforward thanks to an oil sight glass with graduated fill levels, a dedicated bottom drainage port, and an included 330ml bottle of vacuum oil.

As a single-stage pump, it will take longer to achieve maximum ultimate vacuum on larger multi-zone systems compared to industrial dual-stage models, and you will need a 5/16-inch adapter for R410a mini-split lines. Additionally, placing a rag near the exhaust cap can help catch any slight oil vapor during initial startup. Overall, the VIVOHOME 3.5 CFM pump stands out as a dependable, budget-friendly workhorse for home garages and DIY workshops.

Model: VH1479 / VH1479US
Motor Power: 1/4 HP Pure Copper
Flow Rate: 3.5 CFM
Ultimate Vacuum: 5 Pa (approx. 29 inHg)
Voltage: 110V / 60Hz
Oil Capacity: 330 ml / 0.35 qt (Included)
Compatible Refrigerants: R134a, R12, R22, R502 (R410a with 5/16 inch adapter)
Item Weight: 11.2 lbs
Product Dimensions: 10.6 x 4.6 x 8.5 inches

The VIVOHOME 3/4 HP 7.2 CFM 2-Stage AC Vacuum Pump Kit is a comprehensive diagnostic and evacuation solution designed for HVAC technicians and ambitious DIYers. Whether servicing residential ductless mini-split systems or recharging automotive R134a air conditioning, this all-inclusive package provides the critical equipment needed to test, evacuate, and charge refrigerant loops reliably.

At the core of this system is a potent 3/4 HP all-copper motor driving a dual-stage rotary vane mechanism. Delivering a flow rate of 7.2 CFM, it achieves a deep vacuum down to 15 microns, swiftly boiling off internal moisture and non-condensable gases to prevent internal corrosion and system failure. The included 4-way manifold gauge simplifies workflows by allowing simultaneous evacuation and charging without needing to swap hoses, while the 7-level sensitivity electronic leak detector helps locate micro-leaks quickly.

Constructed with a rugged cast aluminum housing and a solid iron base, the unit remains stable during operation. Anti-slip rubber feet effectively dampen vibration, keeping operating noise to a modest 65 dB or less. Integrated thermal protection and a built-in cooling fan allow the pump to handle 40 to 50 minute duty cycles without overheating. An anti-backflow valve and dual exhaust mist filters keep your work environment clean by preventing vacuum oil back-siphoning and airborne oil mist.

While the total weight of nearly 32 pounds makes it somewhat hefty for tight service calls, and it is explicitly not designed for newer A2L refrigerants, the kit excels across standard R134a, R410A, and R22 applications. With everything included from calibration-ready gauges to extra pump oil and can taps, the VIVOHOME 7.2 CFM kit offers outstanding utility, performance, and value for automotive and residential HVAC maintenance.

Motor Power: 3/4 HP Pure Copper Motor (2880 RPM)

Free Air Displacement: 7.2 CFM (Dual-Stage)

Ultimate Vacuum: 15 Microns

Inlet Ports: 1/4 Inch SAE and 1/2 Inch ACME

Manifold Gauge Rating: Shock-resistant up to 800 PSI (4-Way)

Refrigerant Compatibility: R134a, R410A, R22, R12, R502

Noise Level: Under 65 dB

Product Weight: 31.9 lbs

The VIVOHOME 1/2 HP 5 CFM 2-Stage Vacuum Pump and 4-Way Manifold Gauge Set provides a comprehensive, professional-grade diagnostic and evacuation solution. Designed for HVAC contractors, automotive technicians, and dedicated DIYers, this kit contains the core equipment necessary for servicing residential mini-splits, central air conditioning units, and automotive AC systems.

At the core of this system is a 1/2 HP 4-pole copper motor paired with a dual-stage pump mechanism. By utilizing dual-stage compression, it pulls systems down to an ultra-deep 0.3 Pa (2.25 microns) in mere minutes, thoroughly vaporizing moisture and eliminating non-condensable gases that could degrade cooling performance. The integrated 4-way manifold gauge features an oil-filled core for vibration damping, a calibration adjustment screw, and a clear sight glass, delivering consistent plus or minus 1.6% accuracy across R134a, R410a, R22, and R12 refrigerants.

Durability and user convenience stand out across the entire design. The pump features a rugged die-cast aluminum body with integrated T-shaped cooling fins and a high-volume fan that keeps operating temperatures down and acoustic output under 65 dB. System safety is reinforced by an anti-backflow check valve to protect clean refrigerant lines from oil migration. The package includes four 3-layer reinforced hoses with distinct color coding, plus standard 1/4 inch SAE, 1/2 inch ACME, and 5/16 inch R410a adapter fittings.

While the full dual-stage assembly carries more weight than basic single-stage alternatives, the substantial increase in evacuation speed and deeper ultimate vacuum level make it a worthwhile trade-off. Overall, the VIVOHOME 2-Stage 5 CFM kit stands out as a reliable, high-value package that handles rigorous AC charging, diagnostic, and evacuation tasks with dependable precision.

Motor Power: 1/2 HP 4-Pole Copper Motor (2880 RPM)

Flow Rate: 5.0 CFM

Ultimate Vacuum: 0.3 Pa / 2.25 Microns

Noise Level: Under 65 dB

Manifold Gauge: 4-Way with calibration screw, sight glass, and plus or minus 1.6% accuracy

Hoses: 4 Color-coded, 3-layer reinforced rubber hoses (Red, Blue, Yellow, Black)

Refrigerant Compatibility: R134a, R410a, R22, R12, R502

Port Fittings: 1/2 inch ACME, 1/4 inch SAE, with included 5/16 inch R410a adapters

The VIVOHOME VG Series 1/2 HP 5 CFM 2-Stage AC Vacuum Pump and Manifold Gauge Set is an all-inclusive diagnostic and evacuation kit engineered for both automotive air conditioning maintenance and residential HVAC systems. Designed for DIY mechanics looking to tackle their own repairs as well as technicians seeking a reliable field setup, this kit delivers the deep vacuum capabilities necessary to properly boil off moisture and eliminate non-condensable gases from closed refrigeration lines.

At the heart of the system is a 1/2 horsepower high-torque copper motor paired with a dual-stage rotary vane pump that pulls down to 15 microns. In real-world servicing, the dual-stage architecture outperforms standard single-stage pumps by evacuating systems much faster and achieving a deeper ultimate vacuum, which protects compressors from premature failure caused by internal moisture and acid formation. The unit runs smoothly and stays relatively quiet at 65 dB or lower, while dual exhaust filters keep oil mist to a minimum in enclosed garages.

The build quality is durable and well-suited for regular use, incorporating a reinforced aluminum housing with pronounced cooling fins and an internal fan to prevent motor overheating during long pull-down cycles. The accompanying three-way manifold gauge set is encased in a protective rubber boot with easy-access zero-calibration screws and a built-in swivel hook for convenient under-hood hanging. Universal inlet ports and a wide selection of brass adapters allow the system to connect seamlessly to R134a, R410A, R22, and other common setups.

The included printed instructions are relatively brief, so novice users may want to consult external guidance to ensure proper valve operation and coupler setup. Additionally, users working with modern mildly flammable A2L refrigerants will need a differently certified unit. Overall, the VIVOHOME VG Series provides outstanding evacuation speed, solid build quality, and a comprehensive set of accessories that make AC servicing accessible and cost-effective.

Pump Type: 2-Stage Rotary Vane Vacuum Pump

Motor Rating: 1/2 HP Pure Copper Motor, 3456 RPM

Flow Rate: 5.0 CFM

Ultimate Vacuum: 15 Microns

Noise Level: Less than or equal to 65 dB

Inlet Ports: 1/4" SAE and 1/2" ACME

Supported Refrigerants: R134a, R410A, R22, R12, R502 (Not compatible with A2L/A2 refrigerants)

Package Contents: 5 CFM Dual-Stage Vacuum Pump, 2 Bottles of Vacuum Oil, 3-Way Manifold Gauge Set, 3 Color-Coded Hoses, 2 R134a Quick Couplers, R134a Self-Sealing Can Tap, 2 Brass Adapters (1/4" Male to 5/16" Female), 1 Brass Adapter (1/4" Male to 1/2" Female)

The VIVOHOME Premium High Vacuum Pump Oil is a specialized mechanical lubricant designed to keep your HVAC and rotary vane vacuum pumps running at peak efficiency. Formulated from premium hydrotreated oil, this product is aimed directly at DIY auto mechanics, HVAC technicians, and anyone who relies on mechanical vacuum pumps for deep vacuum applications. Its primary goal is to ensure smooth operation while protecting the internal components of your expensive equipment.

In terms of performance, this vacuum pump oil stands out for its high flash point and superior lubrication properties. It maintains a stable viscosity whether you are dealing with high running temperatures or cold weather start-ups. Users will appreciate its ability to reduce foam buildup during operation, which translates to consistent lubrication and better overall vacuum efficiency. Furthermore, its oxidation-resisting properties and excellent water separation work together to prevent sludge formation, keeping the pump internals clean and functional.

The physical product comes in an 11.16-ounce (330 ml) bottle, precision-packaged to maintain high purity and minimal moisture content. This purity is critical for allowing the pump to reach a deep vacuum state. It is highly compatible with a variety of applications, serving as a direct OEM match for VIVOHOME pumps while also working seamlessly with other brands of rotary vane and HVAC vacuum pumps.

While the oil performs exceptionally well, there are a few minor drawbacks to consider. The 11.16-ounce bottle is relatively small, which might catch high-volume commercial users off guard. If you are servicing multiple systems daily, you will likely need to purchase several bottles or look for bulk options. Additionally, the manufacturer recommends changing the oil after each use to maintain optimal performance, which means you can go through a small bottle quite quickly depending on the capacity of your pump.

Overall, the VIVOHOME Premium High Vacuum Pump Oil delivers fantastic value for its cost. It provides industrial-grade lubrication, protects against wear and tear, and ensures your equipment reaches the deep vacuum necessary for proper AC and HVAC servicing. If you need a reliable, high-purity oil for routine pump maintenance, this is a highly recommended choice.

Brand: VIVOHOME

Item Form: Liquid

Volume: 330 ml (11.16 Fluid Ounces)

Material: Premium hydrotreated vacuum Pump Oil

Compatibility: Rotary vane pumps, HVAC vacuum pumps

Model Number: VH1458US

The VIVOHOME VH409 Single Stage Vacuum Pump is designed to provide homeowners, automotive enthusiasts, and HVAC technicians with a dependable, budget-friendly evacuation solution. Engineered primarily for degasifying and dehydrating air conditioning circuits before recharging, this unit is well-suited for servicing car air conditioners, small residential heat pumps, and ductless mini-split systems.

Equipped with a 1/4 HP pure copper motor operating at 1440 RPM, the pump pulls a steady 3.5 CFM flow rate. It achieves an ultimate vacuum rating down to 5 Pascals, sufficient for boiling off residual moisture and clearing out non-condensable gases from closed loops. Dual intake ports with 1/4-inch SAE and 1/2-inch Acme threads make hooking up standard gauge manifolds straightforward without requiring immediate aftermarket adapters for common refrigerants like R134a and R22.

In terms of build quality, the one-piece die-cast aluminum casing protects internal components from accidental impacts while assisting in overall heat dissipation. User maintenance is kept straightforward thanks to a clear sight glass for monitoring oil cleanliness and volume, paired with a bottom-mounted drain plug for quick fluid flushes. The internal cooling fan and rubberized feet keep operational noise right around 65 decibels, making extended garage or indoor sessions comfortable.

While this single-stage pump delivers reliable results for residential and vehicle applications, professionals working on large commercial systems may find evacuation times slower compared to higher CFM dual-stage units. Additionally, connecting to modern R410a mini-split systems will require sourcing a standard 5/16-inch adapter separately. Overall, the VIVOHOME 3.5 CFM pump stands out as a dependable, highly accessible entry point for DIY AC repair and routine maintenance.

Model: VH409

Motor Power: 1/4 HP (180W), Pure Copper Motor

Flow Rate: 3.5 CFM

Ultimate Vacuum: 5 Pa (approx. 37.5 microns)

Voltage / Frequency: 110V / 60Hz

Rotation Speed: 1440 RPM

Intake Ports: 1/4-inch SAE and 1/2-inch Acme

Operating Noise Level: Approx. 65 dB

Housing Material: Die-Cast Aluminum Alloy

Total Weight: 11.4 lbs

The VIVOHOME 4 CFM Vacuum Pump and Manifold Gauge Set is an all-in-one HVAC evacuation and charging bundle designed for automotive mechanics, DIY homeowners, and mini-split system installers. Combining a 1/3 HP rotary vane pump with high-precision manifold gauges, this kit eliminates the need to rent or buy separate diagnostic tools for servicing A/C units.

Delivering a 4 CFM flow rate, the pump quickly draws down deep vacuums to remove moisture and non-condensables from refrigeration lines before recharging. The included manifold set features easy-to-read shock-resistant dials and a clear sight glass to monitor refrigerant flow. With included fittings for R134a, R22, and R410a systems, it handles everything from vehicle air conditioning recharges to single-zone mini-split installations with dependable accuracy.

Built around a die-cast aluminum casing, the vacuum pump remains lightweight and sturdy while effectively dissipating heat through its integrated cooling fan. An ergonomic handle makes transportation painless, and rubberized footpads minimize operational vibration. Oil maintenance is straightforward thanks to a transparent oil level window and an accessible bottom drain port.

While the kit covers nearly all standard diagnostic needs, the single-stage pump is best suited for small to mid-sized systems rather than massive commercial tonnage. Additionally, users must be mindful not to overfill the oil reservoir, as excess oil can produce light misting from the exhaust port during initial startup.

Overall, this VIVOHOME kit delivers tremendous utility and performance for DIYers and independent technicians looking to service vehicle air conditioners and mini-split heat pumps. Its comprehensive assortment of hoses, gauges, taps, and adapters offers everything required to get the job done right on the first attempt.

Motor Power: 1/3 HP, 110V Single Stage Rotary Vane Pump

Flow Rate: 4.0 CFM

Refrigerant Compatibility: R134a, R410a, R22, R12, R502

Hose Length: Three 5-foot reinforced color-coded hoses (Red, Blue, Yellow)

Included Accessories: Electronic leak detector, R134a quick couplers, self-sealing and piercing can taps, R410a adapter (1/4 inch to 5/16 inch), 330 ml vacuum pump oil, and heavy-duty storage bag.

The VIVOHOME 1/3 HP 4 CFM Single Stage Rotary Vane Vacuum Pump is a highly capable tool designed for HVAC technicians, automotive mechanics, and DIY homeowners. Whether you are installing a residential mini-split system, servicing a car air conditioner, or performing routine refrigeration maintenance, this pump delivers the suction power needed to evacuate lines effectively. Its versatile 1/4-inch SAE and 1/2-inch ACME inlet ports make it compatible with a wide array of common refrigerants, including R134a, R22, and R410a.

Performance-wise, the 1/3 HP motor and 4 CFM flow rate allow the pump to pull systems down to 5 Pa rapidly. Users consistently report that it reaches target negative pressure in just minutes, making quick work of line evacuations. The unit is engineered for stability during these tasks, utilizing a high-power fan and T-shape motor heat fins to dissipate heat efficiently. This cooling system ensures the pump can run for extended periods without overheating, which is crucial for thorough moisture removal in AC systems.

Design and build quality are standout features for this model. The die-cast aluminum housing keeps the unit lightweight and sturdy, while the anti-slip rubber base minimizes vibrations. VIVOHOME also prioritized safety and cleanliness by including an anti-backflow design to prevent oil from contaminating your system. Additionally, the cotton filter in the exhaust port effectively separates oil mist from the exhaust gases, keeping the workspace cleaner and reducing operating noise to a comfortable level below 70 decibels. The inclusion of a 330ml bottle of vacuum oil right out of the box is a convenient touch that lets you get to work immediately.

While this vacuum pump excels at residential and automotive tasks, its single-stage design means it might not be the fastest option for massive commercial HVAC systems that typically require a two-stage pump. However, for its intended audience, it provides exceptional value. If you need a reliable, portable, and budget-friendly vacuum pump for home installations or light professional use, the VIVOHOME 4 CFM pump is an excellent investment.

Brand: VIVOHOME

Motor: 1/3 HP

Flow Rate: 4 CFM

Ultimate Vacuum: 5 Pa

Material: Die-cast Aluminum

Inlet Ports: 1/4 inch SAE & 1/2 inch ACME

Compatibility: R134a, R12, R22, R502, R410a

Included Accessories: 330ml Vacuum Oil, Instruction Manual

The SPECSTAR 1/3 HP 5 CFM AC Vacuum Pump and 4-Way Manifold Gauge Set offers a complete, budget-friendly diagnostic and evacuation solution tailored for automotive mechanics, DIY enthusiasts, and residential HVAC technicians. Built around a robust single-stage pure copper motor, this kit handles standard vehicle A/C recharges, mini-split commissioning, and small commercial cooling system maintenance with ease.

In terms of real-world performance, the 5 CFM evacuation speed stands out. It rapidly pulls down vacuum levels to 2 Pa within minutes, ensuring that moisture and non-condensable gases are effectively purged from lines before charging. The manifold gauge delivers ±1.6% accuracy and pairs a dry dial face with a shock-resistant, oil-filled internal core, providing reliable readability even in changing weather conditions. The addition of a 4th dedicated vacuum hose simplifies the workflow by minimizing hose swapping during service cycles.

Durability and safety are supported by a die-cast aluminum pump body, an anti-backflow valve to safeguard lines from oil migration, and thermal protection against motor burnout. Maintenance is straightforward thanks to the oil level observation window and bottom drain port. While the single-stage pump is perfectly suited for automotive and residential units, technicians handling industrial multi-ton systems may prefer a dual-stage setup. Ensure all manifold connections are properly torqued before pulling a vacuum to avoid minor seal leaks.

Overall, the SPECSTAR vacuum pump combo delivers tremendous value by packaging high flow capacity, comprehensive adapter compatibility, and reliable monitoring into an accessible, all-inclusive kit.

Motor Power: 1/3 HP Pure Copper Motor

Flow Rate: 5 CFM Single Stage

Ultimate Vacuum: Down to 2 Pa

Gauge Accuracy: ±1.6%

Refrigerant Compatibility: R134a, R410a, R22, R12, R502

Ports & Adapters: 1/2-inch ACME and 1/4-inch SAE ports; R410a 1/4-inch male to 5/16-inch female; 1/4-inch male to 1/2-inch female

Noise Level: Under 70 dB

Hoses: 4 Color-Coded 3-Layer Reinforced Rubber Hoses

The VIVOHOME 1/2 HP 5 CFM 2-Stage Vacuum Pump (Model VH1397US) is designed for HVAC technicians and automotive DIY mechanics looking for reliable, deep evacuation capability. Engineered with a sparkless, explosion-proof motor design, this unit handles newer A2L refrigerants like R32 and R1234yf alongside traditional blends such as R410a, R134a, and R22. It offers versatile utility across automotive AC repairs, residential mini-split installations, and appliance refrigeration systems.

Performance is driven by a 1/2 horsepower high-torque copper motor combined with a two-stage rotary vane pump mechanism. Generating a 5 CFM flow rate, the pump achieves an ultimate vacuum depth of 15 microns (0.2 Pa). This level of vacuum ensures all non-condensable gases and residual moisture boil off and vent cleanly from AC lines, preventing system freeze-ups and premature compressor failure.

The build quality centers around a die-cast aluminum alloy chassis paired with thermal overload protection and T-shaped cooling fins to maintain stable operating temperatures during extended runs. The front features an oil viewing window to inspect fluid levels and clarity, while a bottom drain plug facilitates mess-free oil changes. Three separate inlet ports (1/4-inch SAE, 3/8-inch SAE, and 1/2-inch ACME) allow immediate connection to standard manifold gauge sets.

Prospective buyers should note that at 20.1 pounds, the dual-stage build is noticeably heavier than lighter single-stage alternatives. In colder ambient environments below 60 degrees Fahrenheit, the motor may take a couple of minutes to warm up and run smoothly. Nonetheless, with its quiet operation, A2L compliance, and powerful pull-down performance, the VIVOHOME 5 CFM pump represents an outstanding value for both DIYers and working pros.

Pump Style: Dual-Stage Rotary Vane

Motor Power: 1/2 HP Copper Motor

Flow Rate: 5.0 CFM

Ultimate Vacuum: 0.2 Pa (15 Microns)

Voltage: 110V / 60Hz

Inlet Ports: 1/4-inch SAE, 3/8-inch SAE, 1/2-inch ACME

Refrigerant Compatibility: A2L (R32, R1234yf, R454B), R410A, R134A, R22, R12, R404A, R502

Housing Material: Die-Cast Aluminum Alloy

Unit Weight: 20.1 lbs