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Harmsco WaterBetter Replacement Filters


Harmsco WaterBetter Polyester Series Cartridges are highly efficient filter cartridges made of pleated Polyester-Plus filter media for low pressure drop, high flow capability, increased contaminant removal, long filter runs, reusability, and the lowest cost per gallon filtered. WaterBetter Polyester Series Cartridges are available in several lengths and micron ratings to fit many different housings including the Harmsco HIF, BC, HBC and FSSS series as well as housings by other manufacturers.

  • Cartridges are cleanable and reuseable in most applications (5 micron and higher)
  • FDA approved materials - NSF 61 certified
  • Lengths: 9-3/4", 19-1/2", 20", 29-1/4"
  • Filter Media: Polyester-Plus
  • End Caps: Plastisol (pliable PVC)
  • Max Temperature: 140°F (standard cartridges)

Harmsco Cartridge Cleaning Instructions

Harmsco WaterBetter Series Filters 2-3/4" x 9-3/4"


  • Length: 9-3/4" Diameter: 2-3/4"
  • Pleated design for increased surface area
  • Cleanable and reusable in most applications (5 micron and higher)
  • 4 sq. ft. of Polyester-Plus filter media per cartridge
  • FDA approved materials and NSF/ANSI Standard 61 certified
  • Made in USA
  • Color coded end caps help identify micron rating

Harmsco WaterBetter Series Filters 2-3/4" x 19-1/2"


  • Length: 19-1/2" Diameter: 2-3/4"
  • Pleated design for increased surface area
  • Cleanable and reusable in most applications (5 micron and higher)
  • 8 sq. ft. of Polyester-Plus filter media per cartridge
  • FDA approved materials and NSF/ANSI Standard 61 certified
  • Made in USA
  • Color coded end caps help identify micron rating

Harmsco WaterBetter Series Filters 2-3/4" x 20"


  • Length: 20" Diameter: 2-3/4"
  • Pleated design for increased surface area
  • Cleanable and reusable in most applications (5 micron and higher)
  • 8 sq. ft. of Polyester-Plus filter media per cartridge
  • FDA approved materials and NSF/ANSI Standard 61 certified
  • Made in USA
  • Color coded end caps help identify micron rating

WB-20-1W Harmsco WB-20-1W 20 WaterBetter Filter 1 Micron
$14.93
WB-20-5W Harmsco WB-20-5W 20 WaterBetter Filter 5 Micron
$12.66
WB-20-20W Harmsco WB-20-20W 20 WaterBetter Filter 20 Micron
$12.66
WB-20-50W Harmsco WB-20-50W 20 WaterBetter Filter 50 Micron
$12.66

Harmsco WaterBetter Series Filters 2-3/4" x 29-1/4"


  • Length: 29-1/4" Diameter: 2-3/4"
  • Pleated design for increased surface area
  • Cleanable and reusable in most applications (5 micron and higher)
  • 12 sq. ft. of Polyester-Plus filter media per cartridge
  • FDA approved materials and NSF/ANSI Standard 61 certified
  • Made in USA
  • Color coded end caps help identify micron rating

WB-931-1 Harmsco WB-931-1 29-1/4 WaterBetter Filter 1 Micron
WB-931-5 Harmsco WB-931-5 29-1/4 WaterBetter Filter 5 Micron
WB-931-20 Harmsco WB-931-20 29-1/4 WaterBetter Filter 20 Micron
WB-931-50 Harmsco WB-931-50 29-1/4 WaterBetter Filter 50 Micron

Harmsco WaterBetter Calypso Blue 10" Big Blue Style

9-3/4" x 4-1/2" cartridges made for 10" Big Blue housings.

WB-HB-10-1W Harmsco WB-HB-10-1W WaterBetter Calypso Blue Filter - 1 Micron
WB-HB-10-5W Harmsco WB-HB-10-5W WaterBetter Calypso Blue Filter - 5 Micron
WB-HB-10-20W Harmsco WB-HB-10-20W WaterBetter Calypso Blue Filter - 20 Micron
WB-HB-10-50W Harmsco WB-HB-10-50W WaterBetter Calypso Blue Filter - 50 Micron

Harmsco WaterBetter Calypso Blue 20" Big Blue Style

20" x 4-1/2" cartridges made for 20" Big Blue housings.

WB-HB-20-1W Harmsco WB-HB-20-1W WaterBetter Calypso Blue Filter - 1 Micron
WB-HB-20-5W Harmsco WB-HB-20-5W WaterBetter Calypso Blue Filter - 5 Micron
WB-HB-20-20W Harmsco WB-HB-20-20W WaterBetter Calypso Blue Filter - 20 Micron
WB-HB-20-50W Harmsco WB-HB-20-50W WaterBetter Calypso Blue Filter - 50 Micron