GNERAL DESCRIPTION Type JFA pre-filters are composed of an inner mat of expanded aluminium foil corrugated for extended surface enclosed by grids of heavier expaned aluminium and locked in by a roll-formed one piece mitered-corner channel secured at one corner by a pop rivet.

APPLICATION Excellent as a roughing filter where ease of cleaning is necessary. Frequent washings do not affect the media. Commonly used in electronic equipment, kitchen ventilation and many other applications.

TYPICAL SPECIFICATION Frame : 0.016” aluminium – one piece channel, mitered corner construction
Fastening : Blind rivet
Outer Layers : Aluminium stock
Inner Media : Corrugated layers of expanded aluminium alloy foil
Expanded Outer Layers : Aluminium stock
Tolerance : Length ±1/16” Width ±1/16”
Thickness ±0.030

Note : Closer tolerances are possible but require additional tooling costs
Minimum (Recommended) Area 16 sq.in Length 4 in Width 4 in
Maximum (Recommended) Area 500 sq.in Length 24-1/2 in Width 19-1/2 in
Note : Larger sizes are possible but many require additional bracing for support.

Available Filter Thick : 0.25, 0.375, 0.44, 0.47, 0.50, 0.75, 0.875, 1.0 in inches also 1-7/8”
ASHRAE Standard : 52.2-2012 ; 25mm thickness 50mm thickness
Minimum Efficiency Reporting Value : MERV 5 MERV 5
Average ASHRAE Dust Weight Arrestance : 64% 71%
Initial Resistance @ 2.5m/s face velocity : 33 Pa 55 Pa