Brennan N2404-08-08-SS Stainless Steel Compression Tube Fitting, Straight Adapter, 1/2" Tube OD x NPT Male Coupler for connecting two pipes in a straight run Push-to-connect fitting connects to pipes or tubing on one end and has an NPT male connector on the other Made of stainless steel for resistance to scaling and corrosion Double ferrule fitting reduces possibility of leakage Meets ISO 9001:2008 quality assurance standards