Versatile Adapters: This 4-pack includes 2 brass adapters with 1/2IPS female to 3/4GHT female threads and 2 adapters with 1/2IPS female to 3/4GHT male threads. Rubber washer was contained. 1. There are 11.5 thread per inch (TPI) of the 3/4'' GHT Female/Male Thread, it also be called 3/4-11.5 NH, FHT, MHT, MGH, FGH. It is a common garden pipe thread In North America. 2. The 1/2'' Female end of this adapter is fit for 1/2''-14 NPT and BSP (G) male thread, use with the rubber sealing washer, ensures a perfect connection without any leakage. Sealing Washer: Features built-in rubber gaskets to ensure a secure, leak-proof connection. Multi-Purpose: Ideal for connecting garden hoses, irrigation systems, RVs, campers, Marine Boat Sprinkler Faucet, Shower Hose, Water Heater Adapter. Easy Installation: Simply screw the adapters onto compatible male or female threaded fittings. Durable Construction: Crafted from solid brass for long-lasting strength and reliability. Upgrade your plumbing connections with this 4-pack of brass adapters with sealing gaskets. Featuring two 1/2''(14 TPI) female to 3/4GHT (11.5 TPI )female adapters and two 1/2''(14 TPI) female to 3/4GHT male bushing adapters, these versatile fittings allow you to seamlessly transition between different pipe sizes and thread types. Crafted from durable brass for long-lasting performance, they provide a secure, leak-proof seal with the included gaskets. Perfect for water pressure diaphragm pumps, garden hoses, sprinklers, faucets, and more, these adapters offer reliable connectivity for your home, RV, camper, boat, or irrigation system. With their compact size and easy installation, they are an essential addition to most gardening water hose pipe and tools toolkit.