🚴‍♀️EASY TO USE- Pin lug for quick connect and disconnect, easy to operate. This fitting would not rotate as a hose is moved, making them less likely to loosen or break. Perfect for attaching to fire hydrant 🚴‍♀️RIGHT SIZE- 2-1/2" National Standard Thread (NST) female on one end for connecting to the hydrant and a 2" NPT male on the other end for connecting to a hose. Great for hooking a hose to a hydrant 🚴‍♀️BRASS MATERIALl- Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability. Brass garden hose adapter fittings are more heat-resistant than aluminum rigid fire hose and hydrant adapters. Brass garden hose adapter fittings are more heat-resistant than aluminum rigid fire hose and hydrant adapters 🚴‍♀️MULTIPURPOSE APPLICATION- Fire hose and hydrant adapter for connecting hoses, pipes, or fittings of different types in the fire brigade, industry, refinery, building industry, agriculture, shipping, military and civil protection. Hose to hydrant adapters are commonly used to help firefighters be prepared and save time in emergency-response and firefighting applications 🚴‍♀️QUALITY WARRANTY- Sincerely hope our products could give you a good experience and some help. Within a month you purchase this product, you can enjoy a worry-free return service. And any questions feel free to contact us, we will try our best to help you Brass Hydrant Adapter with Pin Lug 2-1/2" NST (NH) Female x2" NPT Male. Female to male adapters are used to bridge male tofemale hoses, pipes or valve fittings