Dixon RN32 Stainless Steel 316 Hose Fitting, Insert, 1/4" NPT Male x 3/8" Hose ID Barbed Adapter for connecting pipes or hoses of different types Connects to a hose on one end and an NPT female connector on the other Type 316 stainless steel for higher strength and greater corrosion resistance than type 304 stainless steel Barbed fitting for a tight seal on hoses