Parker 316 Stainless Steel Barb Connector To Male Pipe 1/4" Hose Barb 1/4" Male NPT Adapter for connecting pipes or hoses of different types Connects a hose on one end and a female NPT threaded connection on the other Type 316 stainless steel for more corrosion resistance than type 304 stainless steel Integral hex nut for using a wrench to tighten the fitting