These dampers cover the vast majority of sizes required for residential applications and feature Flexible Link design. Dampers are power close/spring open operation. Two wire, 24 volt with adjustable stop. Installation only requires a 4-1/4” slot in the duct.
CAT. NO. MFG. NO. DIMENSIONS EACH 5H478 5H479 5H480
22” x 10” 24” x 10” 26” x 10” 28” x 10” 12” x 12” 14” x 12” 16” x 12” 18” x 12” 20” x 12” 24” x 12” 14” x 14” 16” x 14” 18” x 14” 20” x 14” 24” x 14” 16” x 16”