Pay in 4 interest-free payments of $133.75 Learn more
Ships within 48 hours · Estimated delivery Nov 15 - Nov 20
69% free area * 1308: 7/8" lattice opening
with 75% free area
" Spiral pipe diameter must be 4” larger than width of grille
Adjustable blades oriented for 3 or 4-way air flow pattern
Square Collar
Parallel Blade Volume Damper 3000P-48X18 Step Down Ceiling Diffuser 69% free area * 1308:h3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee 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. Options * 3000 PLL Low Leak Air Control
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