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Side Access Flatbank

The Side Access Flatbank filter housing is engineered for use with air handling units or other side access equipment. It offers the convenience of servicing the filter from outside the air duct and is especially suited for installations involving limited headroom.

Flatbank concept

The Side Access Flatbank housing is a general purpose filter housing that provides mechanical strength, ease of use and economy. It is used when only prefilters are required.

Rugged Construction

The Side Access Flatbank housing has exceptional structural strength. It utilizes turned-out flanges, welded construction, vertical supports, and angle braces. The Side Access housing is designed to operate at up to 6" WG negative or positive pressure.


The Side Access Flatbank housing is offered in 96 sizes, spanning heights from nominal 1' through 8', and widths from nominal 1' through 12'.

Access Doors

Access doors are hinged and have over-center draw-type plated latches. The doors seal against the housing using closed cell neoprene gasket. The standard Side Access Flatbank is furnished with two doors.

Key Features & Benefits

  • Two depths (8-½”, 12” or 16”)
  • Rugged doors
  • Structurally rated up to 6” positive pressure
  • 16-gauge galvanized steel
  • Welded construction
  • 1-5/16” flanges
  • 2”, 4”, and 6” depths
  • Internal bracing
  • Compact design
  • Factory assembled and easy to install

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