Parallel Blade Volume Damper 3000P-72X68 T-Bar listed Fire-Resistance Diffuser * TVB

listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square collar

Options * MAR - Mounting Angle Ring (sold in pairs - 2 needed

with 75% free area Options 14 GA 304 SS Construction 12 GA (

Standard Features * T-Bar lay-in filter grille with steel removable perforated face * 3/16" holes on 1/4" staggered centers * 20" x 20" x 1" filter (not included) * Square collar for 20 x 20 duct * 2x2 galvaneal steel panel with seismic support holes * Soft White Options * Square to round No Labor Collar

Parallel Blade Volume Damper 3000P-72X68 T-Bar listed Fire-Resistance Diffuser * TVBh3. 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