Best Ac Vacuum Pump Under $150 (2026): 5 Picks Compared
5 AC vacuum pumps compared by flow rate, vacuum level, motor, fittings, kit contents, and weight for AC work.
On this page
Top picks at a glance
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- 1
Best OverallVIVOHOME VH4099.7/10View on Amazon - 2
Best KitVIVOHOME Kit VH2599.6/10View on Amazon - 3
Best 4.5 CFMOrion OMT Pump9.6/10View on Amazon - 4
Best Large KitVTG VOGTEN Kit9.5/10View on Amazon - 5
Basic PumpKozyvacu TA3509.3/10View on Amazon
An AC system that still holds air and moisture will not cool right, and a vacuum pump is the tool that pulls that air out before refrigerant goes back in. A pump that fits the fittings, the refrigerant, and the job at hand saves a trip back to the shop. We compared pumps by flow rate, vacuum level, motor, fittings, kit contents, and weight, and the best ac vacuum pump under 150 is the one that matches the system it will evacuate.
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Quick picks
- Best Overall VIVOHOME VH409: 3.5 CFM, 5 Pa in 3 minutes, motor protection, dual fittings Check price on Amazon
- Best Kit VIVOHOME Kit VH259: Manifold gauge, 3000 PSI hoses, couplers, oil, anti-backflow valve Check price on Amazon
- Best 4.5 CFM Orion OMT Pump: 4.5 CFM, 37.5 microns, copper motor, oil and gloves included Check price on Amazon
- Best Large Kit VTG VOGTEN Kit: 4-way gauge, 4 hoses, leak detector, storage case, R410a adapters Check price on Amazon
- Basic Pump Kozyvacu TA350: 3.5 CFM single-stage pump with kit for AC work Check price on Amazon
The picks
VIVOHOME 110V 1/4 HP 3.5 CFM Single Stage Rotary
Single-stage rotary vane pump with a 1/4 HP motor, 3.5 CFM flow, a 5 Pa vacuum level, and an oil bottle included.
Pros
- 3.5 CFM flow with a 5 Pa vacuum level in 3 minutes, per the listing
- Motor current protection against overload or phase loss, per the listing
- 1/4-inch SAE and 1/2-inch Acme intake fittings for flexible connections
- Oil viewing window, bottom drain valve, and cooling fan for maintenance
Cons
- No warranty term stated in the listing
- R410a use needs a 5/16-inch adapter that is not included
- No manifold gauge included in this pump-only listing
- Noise is stated at approximately 65 dB, with no quieter figure stated
VIVOHOME 1/4 HP 3.5CFM 1 Stage AC Vacuum Pump
Single-stage rotary vane pump kit with a 1/4 HP motor, 3.5 CFM flow, a 5 Pa vacuum level, and a manifold gauge set.
Pros
- 3.5 CFM flow with a 5 Pa vacuum level, per the listing
- Manifold gauge with plus or minus 1.6% accuracy included
- 3 color-coded 3000 PSI hoses with R134a quick couplers included
- Internal stainless intake filter, cotton exhaust filter, and anti-backflow valve
Cons
- No warranty term stated in the listing
- Not compatible with R410A systems, per the listing note
- No R410a adapter included in this kit
- Weight of 16.61 pounds, heavier than the pump-only listings in this set
OMT 4.5 CFM Single Stage Vacuum Pump for R134a
Single-stage pump with a 1/3 hp all-copper motor, 4.5 CFM flow, and a 37.5 micron vacuum level, with oil included.
Pros
- 4.5 CFM flow with a 37.5 micron (5 Pa) vacuum level, per the listing
- 1/3 hp all-copper motor with a reinforced aluminum alloy casing
- Intake filter and trap against impurities and oil mist, per the listing
- Oil, gloves, and Teflon tape included in the kit
Cons
- No warranty term stated in the listing
- No manifold gauge included in this pump kit listing
- No noise figure stated in the listing
- No oil viewing window stated in the listing
4.5 CFM AC Vacuum Pump and Gauge Set for R134a R22
Single-stage pump kit with a 1/3 HP motor, 4.5 CFM flow, a 4-way manifold gauge, 4 hoses, a leak detector, and a storage case.
Pros
- 4.5 CFM flow with a 1/3 HP copper motor, per the listing
- 4-way manifold gauge with 4 hoses at 5 feet and a leak detector included
- R410a adapters and R134a can taps included in the kit
- Storage case with a valve core wrench and screwdriver included
Cons
- No warranty term stated in the listing
- No vacuum level stated in the listing
- No oil inclusion stated in the kit listing
- Weight of 21.2 pounds, the heaviest kit in this set
Single-Stage HVAC Vacuum Pump, 3.5CFM
Single-stage pump with a 3.5 CFM flow rate for AC and HVAC work, with a kit included.
Pros
- 3.5 CFM flow rate for AC and HVAC applications, per the listing
- Kit included for setup and use, per the listing
- Works with vacuum pump oil for smooth operation, per the listing
- Dimensions of 14 x 12.3 x 7.6 inches stated in the spec table
Cons
- No warranty term stated in the listing
- No vacuum level stated in the listing
- No motor size stated in the listing
- No fittings stated in the listing
Compare the picks
| Pump | Shop Score | Flow | Vacuum level | Motor | Weight |
|---|---|---|---|---|---|
| VIVOHOME VH409 | 9.7/10 | 3.5 CFM | 5 Pa | 1/4 HP, 180W | 11.4 pounds |
| VIVOHOME Kit VH259 | 9.6/10 | 3.5 CFM | 5 Pa | 1/4 HP | 16.61 pounds |
| Orion OMT Pump | 9.6/10 | 4.5 CFM | 37.5 microns (5 Pa) | 1/3 hp | 9.77 pounds |
| VTG VOGTEN Kit | 9.5/10 | 4.5 CFM | Not stated | 1/3 HP | 21.2 pounds |
| Kozyvacu TA350 | 9.3/10 | 3.5 CFM | Not stated | Not stated | 10.6 pounds |
Specifications are manufacturer rated, as published on each listing and collected 25 October 2026.
How we scored them
The Shop Score weighs performance, build, value, safety and warranty. For a vacuum pump, safety means stated motor current protection, intake filters, and anti-backflow valves, because those features guard the pump and the system during evacuation. No listing here states a warranty term, so warranty does not separate these pumps. Read the weights on our How We Pick page.
| Product | Shop Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| VIVOHOME VH409 | 9.7 | 32 | 22 | 21 | 7 | 0 |
| VIVOHOME Kit VH259 | 9.6 | 30 | 21 | 22 | 7 | 0 |
| Orion OMT Pump | 9.6 | 32 | 21 | 21 | 6 | 0 |
| VTG VOGTEN Kit | 9.5 | 28 | 21 | 22 | 0 | 0 |
| Kozyvacu TA350 | 9.3 | 26 | 19 | 19 | 0 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
What the listings tell you
We compared 5 AC vacuum pumps. Flow rates run from 3.5 CFM to 4.5 CFM, vacuum levels are stated for 3 listings and not stated for 2, and kit contents run from a pump alone to a pump with a manifold gauge, hoses, couplers, oil, and a storage case. No listing states a warranty term, and weights run from 9.77 pounds to 21.2 pounds as stated.
How to choose the best ac vacuum pump under 150
Flow rate and vacuum level
Flow rate and vacuum level are the two figures to compare first. The Kozyvacu and both VIVOHOME listings state 3.5 CFM, while the Orion and VTG listings state 4.5 CFM. Vacuum level is stated as 5 Pa for the VIVOHOME pump and kit and as 37.5 microns (5 Pa) for the Orion pump, while the Kozyvacu and VTG listings state no vacuum level. A higher flow rate does not replace a stated vacuum level, so a listing with no vacuum level leaves that figure unclear. See our single vs two stage AC vacuum pump picks for stage differences.
Refrigerants and fittings
Refrigerant fit decides whether a pump can touch a given system at all. The VIVOHOME pump supports R134a, R12, R22, and R502, and R410a with a 5/16-inch adapter that is not included. The VIVOHOME kit supports R134a, R12, and R22, and its note states that it is not compatible with R410A systems. The Orion pump supports R12, R22, R134a, R410a, and R502, and the VTG kit supports R134a, R22, and R410a. Fittings differ too: the VIVOHOME pump lists 1/4-inch SAE and 1/2-inch Acme intake fittings, and the Orion pump lists compatibility with 1/4-inch, 1/2-inch, and 3/8-inch hoses. Check the refrigerant and the fitting size before buying, since an adapter that is not included changes what else must be bought.
Kits versus pump alone
Kit contents change what else must be bought. The VIVOHOME kit includes a manifold gauge with plus or minus 1.6% accuracy, 3 color-coded 3000 PSI hoses, R134a quick couplers, an adapter, a can tap, and a bottle of 0.35 qt vacuum oil. The VTG kit includes a 4-way manifold gauge, 4 hoses at 5 feet, quick couplers, a leak detector, R410a adapters, R134a can taps, and a storage case. The Orion kit includes oil, gloves, and Teflon tape for sealing threaded connections. The VIVOHOME pump includes an oil bottle, while the Kozyvacu listing states a kit without listing its contents in detail. For car work, see our best AC vacuum pump for car picks.
Weight and handling
Weight and handling matter when a pump moves between jobs. The Orion pump weighs 9.77 pounds, the Kozyvacu pump weighs 10.6 pounds, the VIVOHOME pump weighs 11.4 pounds, the VIVOHOME kit weighs 16.61 pounds, and the VTG kit weighs 21.2 pounds. Handles are stated for the VIVOHOME pump, the VIVOHOME kit, and the Orion pump, and non-slip bases or feet are stated for the VIVOHOME pump and kit. A heavier kit with a storage case suits a shop shelf, while a lighter pump alone suits a mobile job.
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Garage Fit Check
- Check flow rate against the job: 3.5 CFM for the Kozyvacu and VIVOHOME listings, 4.5 CFM for the Orion and VTG listings.
- Check the vacuum level where stated: 5 Pa for the VIVOHOME pump and kit, and 37.5 microns (5 Pa) for the Orion pump.
- Check refrigerant fit before buying: the VIVOHOME kit is not compatible with R410A systems, while the Orion pump supports R410a.
- Check kit contents against the shelf: manifold gauge and hoses for the VIVOHOME kit and VTG kit, oil and gloves for the Orion kit.
- Check weight and handling: 9.77 pounds for the Orion pump to 21.2 pounds for the VTG kit, with handles stated for 3 listings.
Frequently Asked Questions
What flow rate do these pumps state?
The Kozyvacu and both VIVOHOME listings state 3.5 CFM, and the Orion and VTG listings state 4.5 CFM.
What vacuum level do these pumps reach?
The VIVOHOME pump and kit state 5 Pa, and the Orion pump states 37.5 microns (5 Pa). The Kozyvacu and VTG listings state no vacuum level.
Which refrigerants do these pumps support?
The VIVOHOME pump supports R134a, R12, R22, and R502, with R410a via an adapter that is not included. The VIVOHOME kit supports R134a, R12, and R22, and is not compatible with R410A systems. The Orion pump supports R12, R22, R134a, R410a, and R502, and the VTG kit supports R134a, R22, and R410a.
Does oil come with these pumps?
Oil inclusion is stated for the VIVOHOME pump with an oil bottle, the VIVOHOME kit with a bottle of 0.35 qt vacuum oil, and the Orion kit with oil included. The VTG and Kozyvacu listings state no oil inclusion.
How much do these pumps weigh?
Weights run from 9.77 pounds for the Orion pump to 21.2 pounds for the VTG kit, with the Kozyvacu at 10.6 pounds, the VIVOHOME pump at 11.4 pounds, and the VIVOHOME kit at 16.61 pounds.
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