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C2200 4-Way Attic Inlet

Double L’s C2200 Ceiling Air Inlet delivers considerably more cfm than the old C2000. Compare the performance of the C2200 Ceiling Inlet with 2,089 cfm at .125 SP to the old C2000 Inlet with 1,650 cfm at .125 SP. The extra cfm per inlet allows the customer to use fewer inlets per room, resulting in extra savings. The C2200 Ceiling Inlet operates automatically off of negative pressure supplied by exhaust fan. Counterbalance louvers adjust automatically to static pressure. Each inlet can be shut off for better air control.

Product Meta

Part No. 90635
CFM: 1,817 @ 0.10 SP
CFM: 2,089 @ 0.125 SP
BESS Labs Test #08146
Rough Opening: 22.5” x 22.5”
Inlet OD: 27.25″ x 27.25″


  • Counterbalance Louvers
  • Extra CFM’s
  • Snaps Together
  • Shut-Offs
  • Aerodynamic Edge
  • Counterbalanced Weights


  • Ensures better air control
  • Easily Install in minutes
  • Adjust automatically to static pressure
  • Fewer inlets needed per room
  • Minimal worksite waste and more freight savings
  • Operates automatically off of negative pressure supplied by an exhaust fan
  • Designed with durability to easily pressure wash clean