Galvanized Bellmouth Spin In's for Metal with Damper #9000 SKU 9004 Please select 4" B/M METAL-DAMPER SPIN 25/CT5" B/M METAL-DAMPER SPIN 25/CT6" B/M METAL-DAMPER SPIN 18/CT7" B/M METAL-DAMPER SPIN 12/CT8" B/M METAL-DAMPER SPIN 10/CT9" B/M METAL-DAMPER SPIN 8/CT 10" B/M METAL-DAMPER SPIN 4/CT12" B/M METAL-DAMPER SPIN 2/CT14" B/M METAL-DAMPER SPIN 1/CT16" B/M METAL-DAMPER SPIN 1/CT18" B/M METAL-DAMPER SPIN 1/CT20" B/M METAL-DAMPER SPIN 1/CT Log in to view price