1/2" Body with 1/2" NPT Thread, (1/2" NPT is the most common thread size for skid steer attachments) Included: 2 Female Flat Face Coupler 2 Male Flat Face Coupler 2 Male PVC Protective Cover 2 Female PVC Protective Cover Features: Heavy Duty Design with 5076 PSI Rating Locking sleeve helps prevent accidental disconnects Zinc-Nickel plating provides superior corrosion resistance Compact profile with high flow performance Harden steel construction with anti-corrosive plating Sleeves are hardened to resist deformation and maximize life of the coupler Valve design that allows for a minimal pressure drops and one hand operation Seals are rated for operating temperatures up to 250°F