About This Reducer Adapter: 1/4 Inch NPT male pipe x 3/8 Inch NPT female pipe, High quality brass durable, no rust more wear resistant than aluminum, Thread 0.625" OD × 0.5" OD Reducing hex nipple: 1/4 Inch NPT male pipe x 3/8 Inch NPT male pipe, for connecting two threaded pipes with different diameters. Male NPT threads for connecting to female threaded pipes, Thread 0.625" OD × 0.5" ID Hex Bushing: 3/8 Inch NPT male pipe x 1/4 Inch NPT female pipe, connecting a female and a male pipe or fitting with different diameters, Thread 0.625" ID × 0.5" OD This pipe fitting can apply to water, air, gas, oil, and fuel Note: This product can expose you to chemicals including lead(1.8%~3.7%), which is not allowed by federal law to be installed for potable water use in the U.S.A. and its territories Overview Size : 1/4 Inch NPT Pipe x 3/8 Inch NPT Pipe Material : Brass Brand : T TANYA HARDWARE Color : Brass Item dimensions L x W x H : 3.93 x 3.54 x 0.86 inches Connector Type : Adapter, Bushing Thread Size : '1/4 NPT - 3/8 NPT' Exterior Finish : Brass Thread Type : NPT Item Weight : 0.11 Kilograms