11238 Filter Regulator for O500 July 24, 2020 $222.00 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 21155 Pump retrofit bypass kit for G520 $195.00 Add to Cart 21349 Pump assembly solvent side for G520 $998.00 Add to Cart 19453 Nozzle Assembly with insert $46.00 Add to Cart 23K Manifold Adapter Kit $185.00 Add to Cart