These couplers are designed for high pressure applications such as hydraulic rams, hydraulic jacks and pumps. This 3/8 coupler set consists of a male and female quick coupler. Features: 3/8 Body, 3/8 NPT Thread. Hardened Steel. Ability to connect and disconnect under pressure. 10,000 PSI Rating. 32,000 PSI Burst Rating (Coupled). What's Included : Female Coupler, Male Coupler.