3/8", Brass, Slip Lok Elbow, Use To Connect Outdoor Mist Cooling System Lines & Assembles In Seconds With A Simple Insert & Twist Motion, Can Be Used With Both Low & High Pressure, Up To 160 PSI, Systems As The Elbow Actually Grips Tighter When The Pressure Increases, Additionally, The Elbow & Tubing Can Be Disassembled By Simply Compressing The Ferule Against The Body & Pulling Away From The Tubing.