11238 Filter Regulator for O500 July 24, 2020 View cart “11238 Filter Regulator for O500” has been added to your cart. $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 12490 Spray Manifold Assembly $580.00 Add to Cart 54P1 Plastic Nozzle $18.00 Add to Cart 19454 Nozzle Assembly with insert and push valve $135.00 Add to Cart Sparkle Clean Blast (SCB06) $59.00 Add to Cart