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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
Concealed mounting holes
Maximum single section size 24"x24"
1/2" spacing dual angular louvers
SD52 - Transition Box Spiral Pipe Grille (Single Deflection)
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 12" Duct Opening (front blades parallel to shortest dimension)
Parallel Blade Volume Damper 3000P-60X30 T-Bar Concealed mounting holesh3. 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
US$ 22.98
US$ 34.99
US$ 109.00
US$ 19.99
US$ 25.28
