Specification:_x000D__x000D_Type: A/C Charging Port Adapter_x000D__x000D_Charging port adapter R12 port to accept R134a 'Quick Disconnect'._x000D__x000D_Makes installation time-saving and effort-saving_x000D__x000D_Retrofit couplers high and low pressure_x000D__x000D_Low pressure connection: 1/4 SAE_x000D__x000D_High pressure connection: 1/4 SAE_x000D__x000D_Material: Metal and Plastic_x000D__x000D_Please compare the pictures with your old parts before buying_x000D__x000D_Package included:_x000D__x000D_1 x Blue Cap_x000D__x000D_1 x Red Cap_x000D__x000D_1 x Blue Low Side Quick Coupler_x000D__x000D_1 x Red High Side Quick Coupler_x000D__x000D_Note:_x000D_-Please allow 1-10mm difference due to manual measurement._x000D_-Due to light and screen difference, the item's color may be slightly different from the pictures.