3.6CFM 1/4HP AC Vacuum Pump and Gauge Set, HVAC Vacuum Pump Kit for AUTO Air Conditioning System, Manifold Gauge Set for R134a R22 R410a Refrigerants - w/ R134a Can Taps and Quick Couplers

3-Way Manifold Gauge - Our 3-way gauge delivers highly accurate and reliable pressure measurements of refrigeration equipment. Color-coded hoses help identify the high-pressure (red), low-pressure (blue), and refrigeration (yellow) ports; With a working pressure of 600psi and a burst pressure of 3000psi, the 5ft rubber hoses are flexible, durable, and not easy to damage; Built-in hanging hook keeps the gauge off the ground and within reach during service.
Works for R134a Vehicle AC Systems Service R134a car air conditioning with R134a quick couplers and R134a can taps(New R1234yf Refrigerant needs R1234f quick couplers & can tap).
Compatible refrigerants: R134a, R410a, R22. The large-capacity tool bag can carry all the accessories needed at one time. This kit is easy to use for beginners.
Note - If you want to use for mini split system, check the location of the outdoor unit and determine whether you need to purchase R410a additional curved connectors.


AC vacuum pump and gauge set
3.6CFM Vacuum Pump
Package List
Installation Guide
Install vacuum pump and gauge set according to this guides
Blue Hose: Connect low pressure gauge (1) and low pressure quick coupler (5) together. Then connect the low pressure quick coupler to the low pressure connector of car.
Yellow Hose: When filling with refrigerant, connect the center connector of the gauge (2) to the vacuum pump (4). When draining the refrigerant, connect the center connector of the gauge to the bottle opener
Red Hose: Connect high pressure gauge (3) and high pressure quick coupler (6) together. Then connect the high pressure quick coupler to the high pressure connector of car.
Before use, please ensure that the 6 position joints as shown in the figure are tightened so that the kit can work properly during operation incase of leakage.
Why can't quick couplers connect to my cars refrigerant port?
The included quick couplers are specifically designed for R134a automotive refrigerant systems. Models with R1234yf/others require compatible couplers.
My system does not work and does not vacuum.
Read intallation guide above before use the gauge kit. Most cases are leaks or closed valves. Re-tighten all connections, fully open blue & red valves, and ensure yellow hose goes to pump. Spray soap water to find bubbles-thats the leak.
Why cant the the vacuum pump reach full vacuum?
90 % cases are leaks or closed valves. Re-tighten all connections, fully open blue & red valves, and ensure yellow hose goes to pump. Spray soap water to find bubbles-thats the leak.
My pump appears to be leaking oil. What should I do?
First, check if the oil drain/fill screw is tight. If so, stains might be condensed oil mist from long-term use, not a leak.
Why my system does not work?
It is due to leaks. Read intallation guide above before use the gauge kit. 90 % cases are leaks or closed valves. Re-tighten all connections, fully open blue & red valves, and ensure yellow hose goes to pump. Spray soap water to find bubbles.