Description: Come with the red cap blue cap and a removable Schrader valve inside it. High/Low side retrofit/adapter/fitting will convert your old R12/R22 charging port and make it accept the R134a quick disconnect hose. The fitting comes with a removable Schrader valve. Time-saving and effort-saving while installing, lightweight, shortcut. Specification: Material: Plastic+Metal Inner Thread: 1/4SAE Conversion: R12/R22 to R134A High Side Port: Red Length: 35mm Low Side Port: Blue Length: 35mm Package Includes: 1 Piece High Side Adapter(Red) 1 Piece Low Side Adapter(Blue)