These matte face couplers are for the hose of your attachment and will couple with OEM couplers. These are also for replacing the OEM couplers on skid steers with 1/2 '' hoses.Features : - Flat face valves - proprietary raise valve - untainted steel springs - Safety sleeve to prevent disconnection - Dirt contamination preventing seal - exchangeable according to ISO and HTMA standards - extra profile polyurethane seal Specifications : - 1/2 '' NPT thread - fauna : 2FFI12 - NPT-F - Male : FFI12 - NPT-Ml .