Specification: Type: A or C Charging Port Adapter Charging port adapter R12 port to accept R134a 'Quick Disconnect'. Makes installation time-saving and effort-saving Retrofit couplers high and low pressure Low pressure connection: 1 or 4 SAE High pressure connection: 1 or 4 SAE Material: Metal and Plastic Please compare the pictures with your old parts before buying Package included: 1 x Blue Cap 1 x Red Cap 1 x Blue Low Side Quick Coupler 1 x Red High Side Quick Coupler Note: -Please allow 1-10mm difference due to manual measurement. -Due to light and screen difference, the item's color may be slightly different from the pictures. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store