SMC KQ Series Brass Push-to-Connect Tube Fitting, Union Tee, 1/2" Tube OD, Black Union tee with female connections on all three ends Accepts nylon and polyurethane tube fittings Made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability Working pressure of up to 145 psi Operating temperature ranges from -5 to 60 degrees C This product is not intended for use in potable water systems