- High-Efficiency Vacuuming:This single-stage rotary vane vacuum pump features a robust 1/4 HP motor, delivering a 3.5 CFM flow rate and an ultimate vacuum of 5 Pa. Ideal for HVAC maintenance, it ensures deep cleaning and reliable results every time
- Stable & Reliable Operation: Equipped with a 4-pole high-torque motor, this HVAC vacuum pump runs efficiently for extended periods. Its cast-iron and die-cast aluminum housing with a built-in cooling fan avoids overheating, maintaining stable performance
- Excellent Compatibility:Equipped with both 1/4-inch SAE and 1/2-inch ACME air inlet ports, this vacuum pumpeasily connects to automotive A/C systems and small R22, R134a, and R410a refrigerant systems
- User-Friendly Design: With a 0.21 qt. (200 ml) oil capacity and a transparent oil window, checking oil levels is simple. This air conditioning vacuum pump even includes a bottle of 0.21 qt. (200 ml) vacuum oil, so you can use it right out of the box
- Versatile Applications: This AC vacuum pump automotive is designed for refrigeration servicing, HVAC repair, resin degassing, and wood stabilization. It is suitable for both professional and home use and handles multiple industries and creative projects
- Item Model Number
- RS-1
- Power
- 1/4 HP, 180W
- Free Air Displacement
- 3.5 CFM/99 L/minin
- Ultimate Vacuum
- 5 Pa/37.5 Microns
- Air Inlet Port
- 1/4″SAE, 1/2″ACME
- Compatible Refrigerants
- R134a, R22, R410a
A: This pump has a flow rate of 3.5 CFM and an ultimate vacuum pressure of < 50 Pa, making it ideal for quickly evacuating home and vehicle AC systems. It far exceeds the needs of DIY users.
Q: What pipe diameters does the inlet port accommodate? Do I need to buy an additional adapter?
A: The standard inlet ports are 1/4″ SAE and 1/2″ ACME, covering 90% of AC hose specifications. For special connections, you can pair it with commercially available adapters (like 3/8″ NPT).
Q: How loud is the pump? Will it disturb the work environment?
A: The noise level is ≤ 70 dB (comparable to normal conversation). Featuring cast aluminum housing for noise reduction, it operates quieter than similar pumps with iron casings. Fit for use in garages, workshops, or other enclosed spaces.
1/4 HP 3.5 CFM Vacuum Pump for Efficient HVAC Maintenance
You can count on the 3.5 CFM vacuum pump to work well for HVAC systems repair and car air conditioners. With its 1/4 HP motor, it has enough power to quickly and effectively remove air, moisture, and other contaminants from A/C systems.
You can save time and effort by using this vacuum pump. You can finish maintenance jobs faster and ensure your systems are properly evacuated without struggling with tools that aren’t as strong. It doesn’t take up much room so you can put it on a workbench or in a service van. This makes it a useful tool to have in your toolbox.
Single-Stage Rotary Vane Design Delivering 3.5 CFM Flow and 5 Pa Ultimate Vacuum
This 3.5 CFM vacuum pump features a single-stage rotary vane design that maintains a flow rate of 3.5 CFM and can reach an ultimate vacuum of 5 Pa. You can count on it to thoroughly and deeply remove air, moisture, and other impurities from refrigerant lines. The pump runs smoothly thanks to the rotary vane system, which also helps reduce wear over time.
Your air conditioner or refrigerator lines will evacuate faster and more accurately thanks to this design. You can keep the system pressure correct, help prevent leaks, and make sure your system works well. This pump is useful for removing air bubbles from resin for craft or industry projects, fixing car air conditioners, and keeping home fridges in good shape.
4-Pole High-Torque Motor for Stable and Reliable Operation
The strong 4-pole, high-torque motor in this 3.5 CFM vacuum pump ensures smooth, steady operation every time. You can leave the pump running for extended periods under normal conditions without worrying about overheating or malfunctions.
The vibrations are much lower with the 4-pole motor, which gives you more control and accuracy while you work. No delays or shaking that could mess up the vacuum process, you can focus on what you’re doing. Stable operation ensures consistent results, so every project for resin degassing or evacuation is done correctly.
3.5 CFM Vacuum Pump: Compatible with R134a, R22, and R410a Refrigerant Systems
You can use this 3.5 CFM vacuum pump with popular refrigerants, including R-134a, R-22, and R-410a. To work on most car or HVAC systems, you don’t need any special devices or extra tools. It’s great for both professional HVAC techs and people who like to do their own projects.
Being able to work with different refrigerants gives you more flexibility on the job. You don’t have to switch tools to use the same pump on other machines or jobs. It streamlines your work and makes it safe and quick to work with many different systems.
1/4-inch SAE and 1/2-inch ACME Air Inlet Ports for Easy Connection
Refrigerant can be evacuated through 1/4-inch SAE and 1/2-inch ACME ports, which makes it easy to connect to most air conditioning systems. It’s easy to quickly connect hoses and fittings because the links don’t have to be perfect. This design makes it easy to set up quickly, saving time and reducing maintenance downtime.
You can quickly switch between different systems and refrigerants thanks to these flexible ports. You don’t have to carry around as many tools or adapters, which speeds up your work. The safe links also prevent leaks and ensure that every evacuation is clean and professional.
0.21 qt. (200 ml) Oil Capacity with Transparent Window for Simple Monitoring
Because this 3.5 CFM vacuum pump has a clear oil window, you can see at a glance how much oil it contains. It can hold 0.21 qt. (200 ml). You don’t have to guess if the pump has enough oil to protect the internal components. It’s quick and easy to add or change oil, and the included vacuum oil bottle means you don’t have to buy any extra supplies.
The pump is easy to maintain and requires little maintenance. The pump won’t wear out faster if you check the oil level before each use, rather than leaving it either empty or overfilled. Regularly checking the oil helps protect internal parts, extends the pump’s life, and ensures it always works right.
Durable Cast-Iron and Die-Cast Aluminum Housing with Built-In Cooling Fan
The cast-iron and die-cast aluminum housing of this 3.5 CFM vacuum pump makes it both strong and relatively lightweight. Because it doesn’t add extra weight, the pump is strong enough to last through regular use. This makes it easier to move or carry to different job places.
The sturdy design ensures it will work well and last a long time. You don’t have to worry about the pump breaking, cracking, or bending over time, even if you use it for heavy work or move it around a lot.
Versatile Applications for Automotive A/C, Resin Degassing, HVAC Repair, and Wood Stabilization
For a long list of uses, this 3.5 CFM vacuum pump is a highly useful tool. You can fix car air conditioners, keep them in good shape, degas resin for craft or work projects, and even stabilize wood for woodworking.
You can use this vacuum pump for many different projects and in various trades. It’s easy to fix a car’s air conditioning, clear out refrigeration lines, get resin ready for casting, or keep HVAC systems in good shape. Its steady motor, reliable suction, and long-lasting build save you time and effort while making things work better.








































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