ProductsHome / JB Solutions / Washing Machine Boxes / Twin Box / Twin Box with Drain & Arrestors Brass Valves (FR) Twin Box with Drain & Arrestors Brass Valves (FR) Twin Box with Drain & Arresters Brass Valves F1960 unassembled Categories: Fire Rated Boxes, JB Solutions, Twin Box, Washing Machine Boxes Description JBSFR7572DB Technical Drawing Related products Washing Machine Boxes Small-N-One With Valves CPVC Washing Machine Boxes