PF FILTER ELEMENTS

PF filters remove sediment and other suspended particles
using elements made from thermally-bonded microfibers
of polypropylene. "Graded Depth" construction provide
element fibers which are wound more tightly toward the
core of the cartridge. Consequently, the entire depth of
the filter element is used for more effective filtration and
longer service life.

“DUAL SEAL” ELEMENT DESIGN ELIMINATES SHRINKAGE AND BYPASS
Conventional cartridge-type filters depend upon compression of the cartridge top and bottom to effect a seal. When wet, the average cartridge loses some rigidity, making it impossible to maintain this original seal.
PF elements employ no cartridge compression. Using an exclusive “Dual Seal” design whereby the element slides over a center standpipe, they are sealed top and bottom by O-rings to insure first-day effectiveness for the life of the element.