[PREMIUM QUALITY] R-1234yf can tap kits made of brass or aluminum alloy, heavy duty rubber, long-lasting safety and 100% tested before shipping. [SIZE] Can tap Connection: 1/2" ACME LH Female x 1/4" SAE (7/16"-20UNF) Male, Adapters: 1/4'' SAE Female x 1/4'' SAE Male with Valve core, 1/4'' SAE Female x 1/2'' ACME Male. [FITMENT]Valve has 1/2" ACME LH threads for use with R-1234yf valve cans, brass dispensing valve with 1/4" SAE Connection for R12 R22 hose, Includes adapters to fit to a R134a Hose (1/2" ACME). [VALVE GASKET FUNCTION] Heavy duty rubber valve gasket assures leak-proof operation, provide perfect seal to prevent leakage. O-ring seal with no-leak connection, let you use it more safety. [PACKAGE INCLUDE] 1Pc x R-1234yf Can Tap, 2Pcs x Adapters, 2Pcs x Seal Caps. If you have any problem or concerns, feel free to contact us.