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General
Uni-Frames are designed for retaining air filter
media pads in applications that require additional
media support.
The frame is fabricated of 26 gauge corrosion-
resistant steel channel with each corner of the
frame mitered for squareness. Filter pads are sup-
ported on the downstream side with a corrosion-
resistant steel expanded metal lathe grid. The
expanded metal lathe backing is spot welded to the
air exit side to prevent vibration. Retainer bars for
the upstream side are available as an option.
Installation
Typical applications include roof top units, spray
booths, residential units, unit ventilators and other
applications not suited for ordinary fiberglass
throwaway filters because of airflow velocity or
environmental considerations
Guide Specifications
1.0 General
1.1 Permanent pad holding frames shall be
Uni-Frame as manufactured by Flanders.
2.0 Construction
2.1 Frames shall be constructed of 26 ga. cor-
rosion-resistant steel.
2.2 Corners shall be mitered in order to elimi-
nate snagging of the media pad.
2.3 The media shall be supported on the down-
stream side by an expanded metal lathe back-
ing which is welded in place.
3.0 Installation
3.1 Install frames in accordance with the manu-
facturers specified recommendation.
24 x 24 x 1
20 x 25 x 1
20 x 20 x 1
16 x 25 x 1
16 x 20 x 1
23-1/2 x 23-1/2 x 7/8
19-1/2 x 24-1/2 x 7/8
19-1/2 x 19-1/2 x 7/8
15-1/2 x 24-1/2 x 7/8
15-1/2 x 19-1/2 x 7/8
Uni-Frame
Media Holding Frame
Models 80955.xxxxxx
Important Features
• 26 ga. corrosion-resistant steel construction
• Metal lathe support backing
• Mitered corners to ensure squareness and
eliminate snagging of media
Nominal Size
Actual Size
(inches)
24 x 24 x 2
20 x 25 x 2
20 x 20 x 2
16 x 25 x 2
16 x 20 x 2
23-1/2 x 23-1/2 x 1-7/8
19-1/2 x 24-1/2 x 1-7/8
19-1/2 x 19-1/2 x 1-7/8
15-1/2 x 24-1/2 x 1-7/8
15-1/2 x 19-1/2 x 1-7/8
Standard Sizes
Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL
the filter and hvac store