WIDE COMPATIBILITY: The R1234yf self-sealing can tap refrigerant dispenser with R134A adapter, connects all R1234yf automotive air conditioning refrigerant cans. Refrigerant opener with 1/2 Inch LH female/internal thread, the 1/4 inch SAE male/external cooling pipe connection thread can direct fitting for R12 R22 manifold. The 1/4 inch SAE female x 1/2 inch male tank adapter fitting for R134A manifold. Safety & Durable: Extended disconnect protection sleeve provides safety protection and protect from injury and refrigerant loss, defending against leakage. Hard construction make that durable and long lasting to use. Easy Installation: Brass metal construction for quick and easy to install, red for high pressure, blue for low pressure, include 2 pcs removable brass adapter (1/4 inch SAE Male Port). : duty low loss refrigerant manual couplers are made of brass mental material, pass a inspection to high quality and premium performance. Material:Brass+aluminum alloy colour:Red+blue+gold Package Contents: 1 x R1234YF Self-sealing Refrigerant Opener. 1 x Tank Adapter. 1 x R1234YF High Side Coupler 17 mm 1 x R1234YF Low Side Coupler 14 mm 2 x Adapters Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.