Three 5 Micron Alternative Replacement Poly-Spun 4.5 x 10 Inch Water Filter Cartridges with One O-Ring WSO3X10039 for GXWH30C, GXWH35F and GXWH40L by KleenWater
This convenient kit consists of (qty) 1 WSO3X10039 o ring and (qty) 3 PWF4510G 5 micron dirt/sediment cartridges.  The  o ring is constructed of nitrile (Buna) rubber to insure a water tight seal. The cartridge has a tri-gradient design with a 5 micron rating. The graded density polypropylene traps larger particles at the surface which has a 50 micron rating. The middle stratum is rated for 25 micron particulate filtration. At the cartridge core the filter is rated a 5 micron. This construction insures maximum cartridge efficiency resulting in extended service life. This kit is an exceptional value made of the highest NSF rated materials. KleenWater is a trademark of Pavel Water Filtration.