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Thomas Air Compressor Pilot Valve Pt# 638835 Used with a Copper Pipe to Pump Cuts in at 115psi and out at 135psi. Has hand toggle unloader for easy starting. 1/2" Flare Fitting from inlet from Pump / 1/2" FPT to Tank / 1/8" FPT for Check Valve Factory preset, yet can be adjusted for higher or lower pressures. An easy fix. For pumps without head unloaders and tanks with check valves. If you are unsure, please contact us us with your model and serial number and we will be happy to help. Contact us This is an original equipment unloader valve.
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🇺🇸 Ship from USA · On Agora since 2026
$79.00