Flanders MERV 8 Expanded Surface Pleated Filter Pre Pleat 40 Specifications

Pleated media panel filter
• Ecologically advanced filtration medium made
entirely from recycled materials.
• Media maximizing V-pleat design
• Expanded metal grid prevents media flutter
while in operation
• Diagonal and horizontal support members pro-
vide frame strength
• Filter media pack is sealed to eliminate air
bypass
• Average efficiency is 30-35% per ASHRAE
52.1-92
• Average arrestance is 93%•
• MERV Rating 8 per ASHRAE 52.2-99
The new MERV 8 Pre Pleat 40 filter features a filter-
ing medium that is more efficient AND ecologically
friendly. Made entirely from recycled materials, this
medium achieves MERV 8 efficiency with low resist-
ance to airflow. It is also unaffected by high humidity
and is hydrophobic (non-moisture absorbing.)
Pre Pleat 40 filters can upgrade existing flat panels as
well as MERV 6 & 7 pleated filters currently being
used with little increase in resistance. All PrePleat 40
filters are 30-35% efficient by ASHRAE 52.1-92 and
MERV 8 per ASHRAE 52.2-99.
These filters are suitable for variable air volume sys-
tems. Operating face velocity ranges are from 0 to
500 fpm for 1 in. and 2 in. filters, and from 0 to 625
fpm for 4 in. filters. Pre Pleat 40 filters are UL 900
Class 2 listed but are available with UL Class 1 listing.
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Pre Pleat 40

MERV 8 Extended Surface Pleated Filters
Physical Data
Media: 100% Non-woven synthetic media manufac-
tured from recycled material
Media Support: Diamond-shaped expanded metal
Pleat Design: V Pleat
Frame: Moisture-resistant clay coated frame made
with recycled material
Size Range (micron) Initial Fractional
Efficiency (%)
0.35 1.0
0.475 3.0
0.625 9.6
0.85 23.3
1.15 33.8
1.45 42.3
1.9 51.7
2.6 63.4
3.5 71.5
4.75 74.9
6.25 78.3
8.5 83.0