Medium Efficiency Filters are those stand-alone filters that
are used where high efficiency filters are not demanded. Generally they do not require a prefilter.
Automatic Roll Filters
Auto
Rolls as they are more commonly called are wound rolls of Fiberglass or
Polyester filter media designed to fit without adaptors in existing proprietary
mechanical housings. Each manufacturer has a unique core or spool that does not permit substitution of one manufacturer's core for
the core of another
manufacturer.
Cap/Flo Filters
Both
filters are collapsible cartridges designed for use in existing permanent basket
retainers. The Cap is available in one or two ply polyester while the Flo
is available in 45% Fiberglass.
440 CubeAvailable
in two or three pocket versions, the 440 features a self-sealing wire
gasket and dual-ply filter media.
Fold FilterThe
Fold is a collapsible medium efficiency cartridge designed for use in an
existing wire cage. The Fold is available in efficiencies from 25% to 95%
by ASHRAE 52-76.
