Rossi 4 in. Complete Damper Details Guarantees air flow stays balanced Handle indicates true blade position Single hand operation Exerts no force on duct system $73.29 $44.70 Add to Cart
Rossi 6 in. Complete Damper Details Guarantees air flow stays balanced Handle indicates true blade position Single hand operation Exerts no force on duct system $78.16 $47.68 Add to Cart
Rossi 8 in. Complete Damper Details Guarantees air flow stays balanced Handle indicates true blade position Single hand operation Exerts no force on duct system $84.02 $51.25 Add to Cart
Rossi 10 in. Complete Damper Details Guarantees air flow stays balanced Handle indicates true blade position Single hand operation Exerts no force on duct system $98.14 $59.87 Add to Cart
Rossi 12 in. Complete Damper Details Guarantees air flow stays balanced Handle indicates true blade position Single hand operation Exerts no force on duct system $105.65 $64.45 Add to Cart
Rossi 14 in. Complete Damper Details Guarantees air flow stays balanced Handle indicates true blade position Single hand operation Exerts no force on duct system $121.29 $73.99 Add to Cart
Aprilaire 6" Round Ventilation Damper (Normally Closed/Power Open) Details Power open/spring close operation Two Wire Installation 24Vac, 6W, 19Va 60Hz Synchronous Type Motor Impedance protected for continuous stall Adjustable stop (in open position) $210.46 $128.38 Add to Cart
Aprilaire 8" Round Ventilation Damper (Normally Closed/Power Open) Details Power open/spring close operation Two Wire Installation 24Vac, 6W, 19Va 60Hz Synchronous Type Motor Impedance protected for continuous stall Adjustable stop (in open position) $213.12 $130.00 Add to Cart
Aprilaire 8" Round Barometric By-Pass Damper Details Insulation proof - All openings secured preventing sprayed-in insulation from entering regulator and causing problems Obstruction proof - All moving parts protected from external obstructions Gasket material minimizes air bypass when blade is... $219.78 $134.07 Add to Cart
Aprilaire 8" Round Zone Damper (Normally Open/Power Close) Details Power close/spring open operation Two Wire Installation 24Vac, 6W, 19Va 60Hz Synchronous Type Motor Impedance protected for continuous stall Adjustable stop (in closed position) $238.43 $145.44 Add to Cart