Appli Parts Quick Coupler for Automotive A/C Charging and Service R-134 High Red 1/4 in. Bronze Adapter Apqc-134h Construction: Body Made Of Brass With Aluminum Cover For Reduced Weight, Includes Bronze Connector Use: For Charging And Servicing High Pressure Automobile A/C Systems With R-134A Refrigerant Connections: Charging Port Is 1/4 In. Sae Male Intended For Charging Hose Connector Kit: Inlcudes High Pressure Quick Coupler Red And Bronze Connector Quality: The Non-Original parts we offer as a replacement of the OEM parts are intended to satisfy and exceed quality expectations. The manufacturing process begins with the selection of high grade materials combined with research and development procedures to ensure the durability and performance of each element.