Subtle details elevate the concealed vent flap from functional to fashionable. Meets the increased air-flow requirements of newer high efficiency HVAC Systems. Can be installed with an 8″ or 7″ diameter tube (not included). Adapter for 7″ diameter tube is included.

• Concealed exhaust flap
• Locking positions: .75″, 1″, 1.25″
• 48 sq. in. net free ventilation area
• Wire screen included