R12 to R134a AC Retrofit Fitting Adapter Kit, A/C Conversion Retrofit Fitting Ad About this items: ?WIDE COMPATIBLITY? - The AC fitting port adapter retrofit r12 to r134a is completely used to replace R12 R22 with R134A charging port 1/4" SAE or 7/16?-20UNF adapter, perfect air conditioning conversion adapter kit. ?PREMIUM QUALITY? - R12 to R134A retrofit fast conversion adapter kit are made of high quality brass, solid construction for high heat resistance, durability and safety. ?EASY INSTALLATION? - R12 to R134A retro fit fittings connect to the thread for use with the valve, there is a removable schrader valves., fitted with a plastic protective cover cap, easy and fast installation. ?DIMENSION? - These Low/High side retrofits/adapters/fittings will convert your old 1/4?? SAE or 7/16"-20 UNF R12 R22 charging port and make it accept the R134a quick disconnect hose. Low Side, 1/4??(7/16??- 20) x 13 mm (Blue). High Side, 1/4??(7/16??- 20) x 16 mm (Red). Package Includes: 1 Pcs x Low Side Quick Coupler. 1 Pcs x High Side Quick Coupler. 1 Pcs Bluex 13mm Blue Cap. 1 Pcs Redx 16mm Red Cap,4Pcs x Valve Cores for R134A System. 4Pcs x Valve Cores for R12, R22 System. 1Pc x Valve Cores Tool. Perfect Airconditioning Seal Repair Kit for Repair leaking A/C system, restore A/C function.