Empire Abrasive Equipment Company - Exhaust Valve - MG-78, with Boron Restrictor

Empire Abrasive Equipment Company exhaust valve for pressure blast system. This MG-78 exhaust valve includes a boron insert. The boron insert on this sku will wear longer in comparison to the MG-78 with the ceramic insert (SKU 290182 is the MG-78 exhaust valve with the ceramic restrictor)