ProLine Brass 3/4 In. FIP x 3/4 In. FIP Lead-Free Swing Check Valve - 1 Each - 3/4 In.
$21.88
The ProLine Series Swing Check Valve offers plumbers an optimal choice to prevent backflow. Built of a solid brass body, this valve contains a swinging gate that opens when water flows out but will shut if the flow is reversed.