Improve your heating, ventilation and airImprove your heating, ventilation and air conditioning duct system by installing this Master Flow 15 in. x 13 in. Ductboard Triangular Terminal Box - R-6 that features an insulated fiberglass design. Insulated ductboard for improved temperature regulation. Product is "knocked down" for shipping and must be assembled.See Full Product Description
20 in. W x 20 in. L x 47 in. H Trim to Fit Plenum
The trim-to-fit plenum fully assembled measuresThe trim-to-fit plenum fully assembled measures 20 in. W x 20 in. D x 47 in. H. and is designed for use with all heating and cooling applications. Constructed of 26 gauge sheet metal, the knock-down design of the plenum takes up very little space and simplifies transporting to the job site. Simply measure and cut to size using tin snips to match the supply opening of the air handler, furnace, or evaporator coil.See Full Product Description
17.5 in. x 28 in. Return Air Box Assembly
Ensure proper return air flow for your 17.5Ensure proper return air flow for your 17.5 in Winchester residential electric furnace application with this easy to assemble return air box. The flexible design allows for connection of a new or existing side air return on either side based on the placement of the reinforced sheet metal panel of the return air box assembly. Plus, the knock-down design simplifies transporting to the job by taking up very little space.See Full Product Description
21 in. x 28 in. Return Air Box Assembly
Ensure proper return air flow for your 21Ensure proper return air flow for your 21 in Winchester residential electric furnace application with this easy to assemble return air box. The flexible design allows for connection of a new or existing side air return on either side based on the placement of the reinforced sheet metal panel of the return air box assembly. Plus, the knock-down design simplifies transporting to the job by taking up very little space.See Full Product Description
