Volume Damper Low-Leak OBD 3000-0BDLL-52X16 Specialty Products Countersunk mounting holes for flush

Countersunk mounting holes for flush appearance with stainless sheet metal screws

w/ Steel Opposed Blade Damper

Countersunk mounting holes with color matching Philips Pozidriv screws

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2 position adjustment for heating and cooling seasons

Volume Damper Low-Leak OBD 3000-0BDLL-52X16 Specialty Products Countersunk mounting holes for flushh3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.