ITEM NAME:1Set R12 to R134a Conversion Adapter Kit High Low Retrofit Valves 3/8'' 7/16'' v Descriptio n Description: *AC Fitting Port Adapter Retrofit R12 To R134a 7/16" LOW 3/8" HIGH Valve *Time-Saving And Effort-Saving While Installing, Lightweight, Shortcut *Can Be Used With Valve By Connecting With Screw Thread *Gas Valve Inside, Equipped With A Plastic Protective Cap *Low/High Side Retrofits/Adapters/Fittings Will Convert Old 3/16" Or 1/4" R12 Charging Port And Make It Accept The R134a Quick Disconnect Hose Specifications: Material: Metal + Plastic Color: As Shown Picture Size: Red: 3/8'' (High), Blue: 7/16'' (Low) Package Included: R12 To R134a Conversion Adapter Kit Package Contents: 1*19mm Blue Cap 1*22mm Red Cap 1*Blue Low Side Quick Coupler 1*Red High Side Quick Coupler 1*Remover Tool Note: 1.Due To The Manual Measurement And Different Measurement Methods, Please Allow 2-3 Mm Deviation. 2.Please Be Reminded That Due To Lighting Effects And Monitor'S Brightness/Contrast Settings Etc, The Color Tone Of The Website'S Photo And The Actual Item Could Be Slightly Different. High quality buy, happy buyï ¼ 5Pcs R12 to R134a Conversion Adapter Kit High Low Retrofit Valves 3/8'' 7/16''.AC Fitting Port Adapter Retrofit R12 To R134a 7/16" LOW 3/8" HIGH Valve. Low/High Side Retrofits/Adapters/Fittings Will Convert Old 3/16" Or 1/4" R12 Charging Port And Make It Accept The R134a Quick Disconnect Hose.