Professional Manufacturing: Exquisite workmanship, good sealing, reliable quality, long-term use. 1/4'' SAE Adapter: The refrigerant control ball valve can effectively reduce the loss of refrigerant. Compatible with any standard SAE refrigerant pipe. Quality Control: Made of high quality brass and ABS material, it is durable, anti-aging. Easy to Use: It is suitable for the use of refrigeration instrument and suitable for household or commercial application. Ideal Choice: Designed for standard 1/4 SAE refrigerant pipe, HVAC, HVAC/r, A/C manifold accessories.