Keystone Microfiberglass Filter Cartridges — the lowest cost alternative for many filtration applications
These filter cartridges are designed to provide the most economical solution for a wide range of filtration problems. State of the art microfiberglass is layered with spun bonded polyester to produce highly efficient particulate removal with extremely low pressure drops. The pleated construction allows greater surface area than depth type cartridges which translates directly into longer life.

Specifications:

MATERIALS OF CONSTRUCTION:
Filter Media: Microfiberglass layered with spun bonded polyester;
50 micron is 100% polyester
Support Materials: Polypropylene
End Caps: Polypropylene

NOMINAL MICRON RATINGS:
0.1, 0.2, 0.45, 1.0, 3.0, 10.0, 30.0, 50.0
Ratings derived from independent laboratory tests using latex bead suspensions and particle counter readings.

EFFECTIVE FILTRATION AREA:
4-1/2 square feet per layer per 10 inch length

DIMENSIONS:
2-3/4" or 2-1/2" OD x 1" ID
Nominal 5", 9.75", 10", 19.5", 20", 29.25", 30", 39", 40" lengths

OPERATING CHARACTERISTICS:
To 75 psid at 68°F
To 40 psid at 150°F