? G Pipe fittings female Thread Water Pipe to NPT Adapter ? BSPP (G) female to NPT male pipe fitting converter (Brass) ? Lead-Free Adapter. Material: Brass ? "G thread female" means that the female part of the adapter is G thread. ? FG to MNPT Adapters ? Size: Female G, Male NPT. G Thread is a Parallel (straight) thread (BSPP - British Standard Pipe Parallel), which has a constant diameter. The NPT thread is slightly tapered, while the G connection is straight. No Washer is Needed. These water connection fittings are for ease of use. They convert a G thread connector to an NPT connector. Made of durable Lead-Free Brass, with threads manufactured to the highest quality standards. Choosing this adapter ensures you?ve selected a high-quality item for your project. It is easy to install for both homeowners and contractors. Technical Details Manufacturer Part Number (MPN): CSSL5616 Item Weight: Package Dimensions: Item model number: Item Dimensions: 4.47 x 2.87 x 2.44 inches Finish: Brass Shape: Adapter Installation Method: Screw-In Item Package Quantity: 1 Number Of Pieces: 1 Maximum Pressure: 120 PSI Measurement System: Metric, Inch Batteries Included? No Batteries Required? No