1500 Series Ceiling Inlets

CID-1500 Inlet Specifications

  • Model No. CID-1500
  • 18.5" W x 21.5" L
  • 1,500 @ .05 SP
  • Shipping Wt: n/a
  • Housing: Plastic
  • Lid: Foam

1500 Series Dimensions

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CID-1500

Counterweight Single-Sided Ceiling Inlet


These units are activated automatically by negative pressure in the barn. A frictionless Styrofoam flap on a PVC continuous hinge swings down, accessing the main room to clean attic air. Flap has adjustable counter-weight to regulate air flow.

Bottom part of housing is insulated to minimize condensation, dripping, or freezing. Ideal for use in combination with recirculation ducts. All Inlets are constructed with removable insulation stops.


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Rough Size Opening

CID-1501 Inlet Specifications

  • Model No. CID-1501
  • 18.5" W x 21.5" L
  • 1,500 @ .05 SP
  • Shipping Wt: n/a
  • Housing: Plastic
  • Lid: Laminated Foam

CID-1501

Counterweight Single-Sided Ceiling Inlet


Bottom part of housing is insulated to minimize condensation, dripping, or freezing. Ideal for use in combination with recirculation ducts. All Inlets are constructed with removable insulation stops.

Bottom part of housing is insulated to minimize condensation, dripping, or freezing. Ideal for use in combination with recirculation ducts. All Inlets are constructed with removable insulation stops.


View PDF Parts List