Products

The C-SR-WTP is a rectangular UL Classified ceiling (radiation) damper, butterfly style, approved for steel duct, flex duct, and ductless installations in approved UL wood truss ceiling/floor and ceiling/roof designs. These dampers provide protection in openings up to 324 square inches in area (see standard size chart on submittal data sheet). These dampers must be equipped with either a field assembled insulated duct board outlet box, a minimum 22 ga steel boot with side outlet, or minimum 26 ga steel insulated boot with side outlet installed on the damper to meet UL requirements.