ADJUSTABLE R134A COUPLER - This VIVOHOME high and low-pressure couplers can be opened or closed through the blue and red knob, which will reduce the wear of taking off and installing and improve the safety EXQUISITE WORKMANSHIP - Outer Diameter is 14 mm, and Inner Diameter is 10 mm, with 2 mm Cross-Sectional Diameter, suits 1/4'' HVAC hoses or adapters; O-rings inside can ensure the complete hermetic seal to prevent the refrigerant leakage; The excellent manufacturing meets the standard requirements CONVENIENT OPERATION - This AC R134A quick coupler adapter kit equips with an accurate snap lock and knurled grip ring, which makes it convenient to operate; The 5 and 6-ball snap-on quick connection can be easily popped on or off HIGH-QUALITY MATERIAL - The aluminum and nickel-plated bronze can provide high abrasion and chemical resistance; The selection of high-quality materials ensures its long-term service life WIDELY APPLICATION - The refrigerant quick coupler adapter is suitable for AC R134A refrigerants, which can be used in AC charging, diagnostic checking, and cars service, including foreign and domestic cars This set of coupler adapters from VIVOHOME will be perfect for AC R134A refrigerants. If you are looking for a coupler that is made of high-quality material, easy to use and has a long service life, this professional adjustable AC R134A coupler will be the best choice

Features:
- Quick to connect or disconnect and easy to adjust to connectors of different lengths.
- Work with O-rings to ensure the complete hermetic seal to prevent the refrigerant leakage.
- The system can be opened and closed by turning knobs and can be disconnected anytime
- Compatible with standard AC manifold gauge, used for different work (AC evacuation (vacuum), diagnostic check, coolant charging, and recovery work.)
- Without influencing the O-rings by installing or replacing the 1/4" adapter separately
- A comfortable handle is designed to make it convenient for you to carry this compact machine everywhere you need it. The non-slip foot pad provides extra stability for the machine.

Product and Package Information:
- Item Weight: 11.4 Ounces
- Product Dimensions: ‎3.3 x 2.8 x 1.6 inches
- Material: Metal
- red high pressure R134A adjustable quick coupler: x1
- blue low pressure R134A adjustable quick coupler: x1
- 1/4" male flare adapters: x2

Product Warranty:
- We assure you that the item you received is 100% safe and sound. For any defective item, please contact our customer service for a satisfying solution.