Water Source™ TC13NL Dual Threaded Brass Tank Tee, No Lead, 13"The 13 inch brass tank tee connects the water line from the pump to the pressure tank. 1 4 in. and 1 2 in. ports accept a pressure switch, a pressure gauge, a relief valve, and a snifter valve. Solid brass design meets federal low lead regulations. 13" 1 4 in. and 1 2 in. ports accept a pressure switch, a pressure gauge, a relief valve, and a snifter valve Dual threaded Solid brass design meets federal low lead regulations 1 in. Female or 1 1 4 in.