Premium: The R134A to R1234YF quick couplers are made of brass material, stronger and more durable, performance Description: Good Sealing: The ball latch designe and rubber seal rings can guaranteed the r1234yf to r134a conversion have good sealing, accurate knurled grip rings for easy for operation, Applications: This R1234YF to R134A quick coupler can be used directly with R134A quick coupler to convert R1234YF to R134A and can also be used with R1234YF/R134A AC instrument cluster Package included: This set contains 1Pcs Red High Pressure R1234YF quick coupler, and 1Pcs blue color low Pressure R1234YF quick coupler, useful in your daily life, and bring you lots of convenience, Weight: 0.50485857998 pounds, Manufacturer: LIXSAZSE