
Multi-Pleat Extended Surface Pleated Air Filters
The Koch Multi-Pleat 40 and Multi-Pleat 40HC are extended surface pleated panel filters
designed for use in all types of residential, commercial, and industrial air filtration
systems. Multi-Pleat filters, because of their high quality filter media and extended
surface construction, offer significantly higher efficiency and longer service life than
fiberglass disposable filters, media pads, or permanent filters. They are available in a
wide range of standard and special sizes in depths of 1", 2" 4" and
6". In accordance with the latest ASHRAE Test Standard 52.2, Multi-Pleat 40 and 40HC
carry a fractional efficiency rating of MERV 7 (Minimum Efficiency Reporting Value). The
filters will also provide and Average Atmospheric Dust Spot Efficiency of 25-30% according
to ASHRAE Test Standard 52.1. The Multi-Pleat is completely disposable and is
interchangeable with other panel filters without modification to existing equipment. Koch
offers the Multi-Pleat in two media area capacity levels, Standard Capacity and High
Capacity. Standard Capacity is ideal for applications where filter change schedules are
based on a preventive maintenance schedule. High Capacity Multi-Pleat filters, because
they have more filter media, are designed for systems using pressure drop readings as the
basis for filter changes.
Multi-Sak Extended Surface "Bag" Filters
The Koch Multi-Sak is an extended surface air filter designed for most medium and high
efficiency air filtration systems. EPA 319 approved Multi-Saks with standard headers, and
self-sealing configurations, are also available.
Multi-Sak Filters are available with two media choices, Synthetic
or Microfiberglass. The Multi-Sak is capable of operating in systems with rated face
velocities of 500 CFM to 3000 CFM. Available efficiencies range from 20% to 95%, and seven
standard face sizes are offered.
Maxi-Grid
MG200 Panel - MERV 7
Economical, 3-ply MERV 7, UL Class 1 panel filter. For use in commercial buildings,
hospitals, industrial plants, and paint spray booths. Link Panels - Koch Maxi-Grid Panels
are also available linked in a continuous series of panels for installation into side
access filter housings. MG Link Panels allow for quick and easy installation and removal
of the filter from the channel as a single unit. Link Panels eliminate the possibility of
air bypass caused by gaps between filters or gaps at the end of a filter track.
Maxi-Grid
MG300 Panel - MERV 8
All-purpose 3-ply MERV 8 panel filter. For use in commercial buildings, hospitals and
industrial plants. Link Panels - Koch Maxi-Grid Panels are also available linked in a
continuous series of panels for installation into side access filter housings. MG Link
Panels allow for quick and easy installation and removal of the filter from the channel as
a single unit. Link Panels eliminate the possibility of air bypass caused by gaps between
filters or gaps at the end of a filter track.

Maxi-Grid MG400 Panel - MERV 11
Heavy-duty 4-ply MERV 11 panel designed for applications requiring higher efficiency (MERV
11). For use in commercial buildings, hospitals, industrial plants, and paint spray
booths. Link Panels - Koch Maxi-Grid Panels are also available linked in a continuous
series of panels for installation into side access filter housings. MG Link Panels allow
for quick and easy installation and removal of the filter from the channel as a single
unit. Link Panels eliminate the possibility of air bypass caused by gaps between filters
or gaps at the end of a filter track.
Maxi-Grid
MG550 Panel - MERV 8
3-ply MERV 8 all-white antimicrobial tackified panel with heavy duty wire support. For use
in commercial buildings, hospitals, industrial plants, and paint spray booths. Link Panels
- Koch Maxi-Grid Panels are also available linked in a continuous series of panels for
installation into side access filter housings. MG Link Panels allow for quick and easy
installation and removal of the filter from the channel as a single unit. Link Panels
eliminate the possibility of air bypass caused by gaps between filters or gaps at the end
of a filter track.

Maxi-Grid MG600 Panel
Externally supported diffusion panel filter designed for crossdraft and downdraft paint
spray booths, automotive plants, and coating applications. Link Panels - Koch Maxi-Grid
Panels are also available linked in a continuous series of panels for installation into
side access filter housings. MG Link Panels allow for quick and easy installation and
removal of the filter from the channel as a single unit. Link Panels eliminate the
possibility of air bypass caused by gaps between filters or gaps at the end of a filter
track.
Multi-Flo
Extended Surface Rigid Filters
The Koch Multi-Flo is a rigid, extended surface air filter engineered to provide medium
and high efficiency air filtration, and long filter life cycles. The Multi-Flo, because of
its rigid, durable construction, is capable of operating in a wide variety of air handling
systems, and is an excellent product for variable-air-volume (V.A.V.) applications where
changes in airflow might render a non-rigid filter ineffective. Multi-Flo Extended Surface
Filters are available with two media choices, Synthetic or Microfiberglass.
MicroMAX
Minipleat Filter
The Koch MicroMAX is an extended surface minipleat filter designed for use in a wide
variety of air filtration systems. The MicroMAX offers a unique combination of high
efficiency and low pressure drop making it the ideal filter for use in any standard HVAC
system. The added advantages of its compact 4" depth and lightweight-yet-rigid
construction also give the MicroMAX unsurpassed capability to perform in more specialized
and difficult applications. MicroMAX Filters are available with standard beverage board
frames or with galvanized steel frame. Steel framed MicroMAX filters are available with no
header or with a single upstream header.
Multi-Cell
Extended Surface Filter
The Koch Multi-Cell is a high efficiency, extended surface air filter designed for use in
HVAC applications of all types. Rigid construction makes the Multi-Cell a superior filter
in variable-air-volume (VAV) systems, or in any application where extreme conditions
require additional filter strength and reliability.
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