S & P 611227 12" Roof Mounting Curb For DB, TXB-UL762 Exhausters and RCXII Ventilators sizes 18-20
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DescriptionA mounting curb is recommended for installing your roof exhauster. This 12" high mounting curb features heavy gauge galvanized steel and welded construction with a 1.5" wood nailer and includes insulation, damper shelf and mitered 3" cant. The outside dimension of the square curb is 27 3/4".The 611227 is for use with DB, TXB-UL762 Exhausters and RCXII Ventilators sizes 18-20
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