GLV's Flexible Square Semi-Rigid Clothes Dryer Transition Duct, listed to UL2158A, attaches to a standard 4-inch round dryer exhaust pipe and 4-inch dryer vent pipe. It requires only 3.3 inches of ...
NEW REVENUE: Fabric ductwork can be taken down and washed in commercial washing machines. Contractors might consider investing in this service as a new revenue stream. October 15, 2018 Air ...