Brennan PCNB2405-08-08 Nickel-Plated Brass Push-to-Connect Tube Fitting, Adapter, 1/2" Tube OD x 1/2" NPT Female Adapter for connecting pipes or fittings of different types Push-to-connect fitting connects to pipes or tubing on one end and has an NPT female connector on the other Made of nickel-plated brass for durability and corrosion resistance Working pressure of up to 290 psi Operating temperature ranges from -4 to 175 degrees F