Flat Face High Flow Skid Steer Hydraulic Quick Connect Coupler -These high-flow couplers feature a quick push to connect operation and also prevent spillage of hydraulic fluid. Although these are a simple push-fit design, users should not be concerned about their safety as they are recognized by the Hydraulic Tool Manufacturers Association for safety and performance. Hydraulic Coupling Quick Disconnect Couplers Set -5,000 PSI rating(350Bar),12 GPM Nominal Flow Rate,23.78 GPM Max Flow Rate,Male Face Diameter: 0.94” (24.5mm),Diameter Male Hex: 1.26” (32mm) and Female Hex: 1.26” (32mm).Thread per inches is 14. Quick Disconnect Coupler w/Dust Caps-Dust caps for hydraulic couplers prevent dirt from entering the system which could cause the coupler to fail, or lead to premature wear of internal components.Advanced anti-rust performance due to the new chrome plating treatment,ensuring the coupling stays in optimal condition even in harsh environments. Flat Face Hydraulic Quick Connect Coupling-Durable ball-locking mechanism for added strength and stability during operation,minimizing the risk of accidental disconnection. CAUTION:These ISO 16028 hydraulic couplings are not to be used on Hydraulic Breaking Hammer.