The 1,500 CFM Double Ceiling Inlet is designed to operate under negative pressure systems. A frictionless Styrofoam flap on a PVC continuous hinge swings down, accessing the main room to clean the attic air. The flap has an adjustable counterweight to regulate airflow. The bottom part of the housing is insulated to minimize condensation, dripping, or freezing. All Inlets are constructed with removable insulation stops.

Features/Advantages

• Constructed from polyethylene with Styrofoam baffles
• 12" removable core plex insulation stop to prevent attic insulation from coming through the inlet
• A counterweighted poly door operates automatically to provide air inlet for a negative pressure system
• Easy to install
• Foolproof operation

Specifications

• 1,500 CFM
• Dimensions: 24" L x 21.13" W x 4.63" H
• Rough Opening: 21.5" L x 18.5" W
• Weight: 11 lbs.