Features:* new and high quality*Made of high quality material, durabl e and practical to use*Charging port adapter R12 port to accept R134a 'Quick Disconnect'.*Makes installation time-saving and effort-saving*Retrofit couplers high and low pressureSpecification:*Low pressure connection: 1/4 SAE*High pressure connection: 1/4 SAE*Material: Metal and Plastic**Universal FitmentYesPackage Contents:1 x Blue Cap1 x Red Cap1 x Blue Low Side Quick Coupler1 x Red High Side Quick CouplerNote:1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.