11238 Filter Regulator for O500 July 24, 2020 $210.00 11238 Filter Regulator for O500 quantity — OR — Add to Cart Category: Parts Description Resources Description The 11238 filter regulator is 1/4″ npt and set to 38 psi for use in the O500 (retired) paint gun washer. Related products C9A Support Nipple $35.00 Add to Cart 22GW Trigger Lock Assembly $68.00 Add to Cart 12509 Air Cap Assembly $65.00 Add to Cart 13836 Outer Filter Bags $82.00 Add to Cart