The Harmsco POLY-PLEAT Filter cartridge substantially reduces Cryptosporidium, Giardia Cysts, harmful organisms, sediment, silt, turbidity, and more!
Absolute rated one micron multi-layer media removes cyst-sized particles for safe, cyst-free drinking water.
NSF 61 Certified and Independently Lab Tested to NSF 53-2007 Protocol for Cysts reduction.
Exceeds 3 Log Reduction of 3 Micron Particle (Cryptosporidium/Giardia cysts).

Harmsco Filtration Products has added a of a second media layer in all Poly-Pleat cartridges. These high-performance Poly-Pleat cartridges have been independently tested at Pace Analytical* and exceed 3 log reduction of 3 micron particle (Cryptosporidium/Giardia cysts). They meet existing EPA Cysts Reduction requirements for Small Community Public Water Systems. These cartridges were tested to NSF 53-2007 protocol for cysts reduction, and are NSF 61 Certified.

20" Whole House Filter System Replacement Filter CartridgeSuitable for all Big Blue or Big White 20″ x 4.5″ Filter housings.