Dixon STFC4SS Stainless Steel 303 Hydraulic Quick-Connect Fitting, Coupler, 1/2" Female Coupling, 1/2"-14 Straight Thread Straight through quick connect female coupler for connecting directly to a hose with a female straight thread end to a female straight threaded connection 1/2" straight through quick connect female coupler with a 1/2" - 14 female straight threaded end Valveless construction provides maximum flow with minimum pressure drop Stainless steel 303 for better machining characteristics than stainless steel 316 with NBR seal for high tensile strength and resistance to abrasion, tear, and compression set Used for hydraulic applications in industrial operations