Envisivent Permanent Flush Mount Air Return, 30” x 8” (Duct Opening) CB5001

• Designed as a permanent air return for walls
• Used to finish a standard duct opening of 30″ x 6″ (762mm x 152mm) or 30″ x 8″ (762mm x 203mm)
• Overall product dimensions 32″ x 10″ x 1/2″ (813mm x 254mm x 12mm) 
• Vented opening dimensions 27 ” x 6″ (705mm x 152mm)
• 48 directionally vented air slots
• Over 68 square inches (439 square cm) of open vent area
• Moisture, mold, and water-resistant
• Impact-resistant triple fiber reinforced cement board
• Machine beveled outer edges for seamless finishing
• Primed panels ready to accept paint
• Eco-friendly manufacturing and non-hazardous
• Can be installed on 1/2″ (12mm) or 5/8″ (16mm) drywall