Harmsco Compatible by US Water Systems

Harmsco WB-HB-20-5W WaterBetter Pleated Filter Cartridge 5 Micron | Case Of 4

Sku: 545-WB-HB-20-5W

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Regular Price: $183.00
Sale Price: $109.96
Out of stock
  • Buy 2 for $100.80 each and save 9%
  • Buy 4 for $93.04 each and save 16%
4.5" x 20" 5 Micron Harmsco WaterBetter Polyester Filter Cartridge - WB-HB-20-5W

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Product Description

4.5" x 20" 5 Micron Harmsco WaterBetter Polyester Filter Cartridge - WB-HB-20-5W | Case Of 4


  • Pleated design for more surface area
  • FDA approved materials - NSF 61 certified
  • Engineered media for superior performance
  • Cleanable and reusable in most applications and micron sizes
  • Thermally bonded end caps to ensure better sealing


  • Lower overall operating cost
  • Longer filter runs for fewer change outs
  • Lower initial pressure drops
  • Reduced maintenance down time and cost
  • Increased contaiminant removal
  • High flow capability


  • Reverse Osmosis Pre-filtration
  • Municipal Drinking Water Filtration
  • Commercial/Resdiential Drinking Water Filtration
  • Desalination Pre-filtration
  • Industrial Water Filtration
  • Cooling Tower Filtration
  • Chill Water Loop Filtration
  • Food & Beverage Filtration
  • Marine/Aquatic Filtration


  • Filter Media : Polyester-Plus
  • Temperature : 140°F (standard cartridges)
  • Dimensions : 4-1/2" O.D.; 1-1/16" I.D.
  • Center tubes : Molded ABS or rigid PVC
  • pH : 3 to 11
  • End Caps : Plastisol (pliablePVC)
  • Harmsco Part # WB-HB-20-5W

Sizing Guide:

  • Nominal Micron Rating : 5
  • Media (sq ft) : 21
  • Recommended Flow Rate* (GPM) : 20
  • Length (in) : 20
  • O.D. (in) : 4.5
  • No./Case : 4

Fits Harmsco, Flowmatic, Ametek, and Pentek

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Additional Information

Availability Out Of Stock
Filter Type Pleated Sediment
Manufacturer Harmsco

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Sorry No Literature Available

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Ratings & Reviews

  • 8/26/2013

    Used on a non chlorinated system (lake water). Filter is located prior to UV light treatment. Non foaming strong durable and reliable can be cleaned and reused. For our filtration needs this is simply the best filter at the best price!

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  • 4/1/2015

    Use this to filter my well water. Works well and is a quality product. Would recommend it to anyone looking for a whole house filter system.

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Product FAQs


Ask a Question

  • I just replaced the filter in my Green Wave Saltless Water Conditioner With Pre-Filter whole house system for the first time. Before I put the new filter (two came with my system) in, I recorded the numbers I found on one end of it: HB-20-5W Z351. Just now, I was looking at your site to order replacements, and I can't figure out which of the three that come up is the right one, because none of them say "Z351". How do I know which one to order? Thanks.

    The replacement would be the one that says HB-20-5W, nothing else. The Z351 is just the production number and has no meaning for any replacements.