<br><b>Part # 112711-150</b> <br><b>Used with a Copper Pipe to Pump</b> <br><b>This Is An Original Equipment Part, NOT an Aftermarket.</b> <br><b>Cuts in at 110psi and out at 125psi. Has hand toggle unloader for easy starting.</b> <br><b>1/2" Compression Fitting from Pump / 1/2" FPT to Tank / 1/8" FPT for Check Valve </b> <br><b>Factory preset, yet can be adjusted for higher or lower pressures. An easy fix. </b> <br><b>For pumps without head unloaders and tanks with check valves.</b>