Tru-Flate 21-147 3/8" Male Hose End Barb Type Hose Fitting This Tru-Flate 21-147 hose adapter is made of brass and has a 3/8" male end for connecting hose to threaded pipe conforming to National Pipe Thread (NPT) standard and a barbed fitting for a hose with a 3/8" inside diameter. This adapter is for a fixed connection between plastic or rubber hose and pipe made of copper, nylon, or plastic. A barbed fitting on one end creates a tight seal on flexible or semi-rigid hose when used with a hose clamp or crimp sleeve or ferrule (sold separately), and a male NPT connector on the other end connects to threaded pipe. This fitting is made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability. Brass can be connected to copper, brass, plastic, aluminum, and welded steel. This fitting is for use in air line systems.Plews Edelmann manufactures and distributes a broad range of automotive parts, tools, and accessories under the Amflo, Tru-Flate, Plews, and Lubrimatic brands. The company, founded in 1909, is headquartered in Dixon, Illinois. Features Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability Precision machined one-piece construction for strength and durability Barbed shank provides secure connection to hose Use with hose clamp or ferrules (sold separately) For use in air line systems USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.