Honeywell TrueZONE ZD12x8TZ 12in x 8in Parallel Blade Zone Damper
ZD12X8TZ – HONEYWELL PARALLEL BLADE ZONE DAMPER 12 X 8 (SIDE MOUNT) The ZD is a power close and spring open damper. It is used when a normally-open damper is required. Features Kevlar gearing reduces wear, more than doubling damper life.