Pay in 4 interest-free payments of $42.88 Learn more
Ships within 48 hours · Estimated delivery Nov 10 - Nov 15
with 54% free area
904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 6" Duct Opening (front blades parallel to shortest dimension)
Type 316 stainless steel
* 3 hour rated * UL and California State Fire Marshall approved * 4-1/4" standard frame style * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3
SD34 Series Performance Data
Opposed Blade Volume Damper 3000-0BD-18X14 Step Down Ceiling Diffuser with 54% free areah3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.
US$ 59.48
US$ 16.98
US$ 21.29
US$ 21.29
US$ 21.29
US$ 23.48
US$ 21.29
