Boost efficiency and ensure leak-free service connections with the Imperial 18-C Kwik Coupler Set. This quick coupler kit includes the 16-C straight coupler and 17-C 90° elbow coupler that are designed for refrigeration and air-conditioning service hoses when connecting to core valve type access fittings. The innovative push-pull mechanism replaces conventional threaded connections, making operation faster, easier, and providing positive sealing at all times. Valve cores are automatically depressed without adjustments or refrigerant loss, streamlining service work and reducing downtime. An integrated automatic shut-off valve retains refrigerant pressure in disconnected hoses, preventing waste and protecting the environment. Built for durability and reliability, this brass quick connector set is a must-have for HVAC technicians who value speed, precision, and safety in their field work.