BLADE KITS MULTI-BLADE DAMPER HARDWARE (BK) For Parallel Dampers - Neva Bind Duro Blade Kit (BDK, BDP) Back Draft Damper Parts (BKP) Multi-Blade Damper Brackets (DBP) Damper Blade Pin (DCS) Damper Crank Arm & Control Swivel (BKDBE-XX) Damper Blade Edging-Stainless (BKO) For Opposed Action Dampers - Opax Blade Kit (BKP) Multi-Blade Damper Parts (BKP) Round to Square Pins (BKDBE) Damper Blade Edging (BKSS) Side Seal
