Anti Scale Water Filter (help reduce scale build-up and corrosion)

The Anti-scale water filter helps reduce scale build-up and corrosion on your water heaters, house plumbing fixtures, and appliances that use water.

Anti-Scale Water Filter

Polyphosphate Scale Inhibitor comparisons

 NameImageReplacement filterWhere to buy
1Waterdrop WD-CTF-01 Countertop Water Filter Buy water drop

Buy Amazon
2APEX Countertop Drinking Water Filter Buy Amazon
3Aquasana AQ-4000W Countertop Water Filter SystemBuy Amazon

Buy Aquasana

4CleanWater4Less® Countertop Water Filtration SystemBuy Amazon
5Ecosoft Countertop Water Filter System Buy Amazon
6iSpring CKC1C Countertop Drinking Water Filtration System Buy Amazon
7New Wave Enviro 10 Stage Plus Water Filter SystemBuy Amazon
8Ifilter Countertop Ultra Drinking Water FilterBuy Amazon
9Brondell H2O+ Cypress Countertop Water Filter System Buy Amazon
10Home Master TMJRF2 Jr F2 Buy Amazon
11AmazonBasics AMZB-G30CW Filtration SystemBuy Amazon
12Ronaqua One Stage Countertop Drinking Water Filtration SystemBuy Amazon
13ESOW Countertop Water FilterBuy Amazon
14APEC Water Systems CT-2000 Countertop Water Filter SystemBuy Amazon

The scale is calcium and magnesium deposits that form on household plumbing fixtures (showerheads, faucets, and pipes) and appliances like dishwashing machines, clothes washers, heaters (gas, electric, and tankless style), and boilers.

Scale build-up can reduce the life of household appliances, cause plumbing fixtures to clog, resulting in a loss of water pressure, increase energy consumption, result in higher utility bills, and improve efficiency.

The filter is easy to maintain compared to a traditional water softener because:

  • It requires no salt to operate.
  • Less water wastage.
  • No backwashing or regeneration is required.
  • requires less space.
  • No electricity is required.

The only maintenance required is a change of filter but this depends on the water quality.

What does a polyphosphate filter do?

A polyphosphate filter is not a water softener. It does not remove hard water minerals (calcium and magnesium) but makes them inactive so they do not form scale on your plumbing and appliances.

Most anti-scale water filters use Template Assisted Crystallization (TAC) technology. The TAC technology attracts hard water minerals and transforms them into inactive microscopic crystal particles or crystalizes them so as not to form scale on household plumbing and appliances.

The crystals stay suspended in the water and are passed to the drain.

Unlike traditional water softeners, which remove healthy minerals from your water, it keeps them in.

Best Anti-scale water filter 2022

Anti-scale water filter reviews

  1. iSpring FWDS150K Anti Scale Water Filter Replacement Cartridges

iSpring FWDS150K Anti Scale Water Filter inhibits corrosion, particularly on iron, steel, galvanized, copper, and lead.

 The filter is tested by an independent third party to meet NSF 42/60 standards.

This filter is capable of filtering up to 150, 000 gallons of water, or lasting for 12 months depending on inline water quality

The iSpring Anti-Scale Filter with Patented Scale Inhibitor fits standard 20” x 4.5” whole house water filtration systems but is also available in size 10″ x 4.5″, white

  1. Express Water Polyphosphate Anti-Scale Water Replacement Filter 


  • Size: 4.5” x 20”
  • Max PSI: 80 psi
  • Max Temperature: 100 °F (38 °C)
  • Material: Sodium Polyphosphate crystal beads
  • Life Cycle: 6 months or earlier, depending on the quality of your incoming water.

Express Water – Polyphosphate Anti-Scale Water Replacement Filter measures 4.5” x 20” inch that fits the whole home water filter system housings.

It is made with food-grade slow-dissolving sodium polyphosphate crystal beads and is finished with a thermally bonded cap and an industrial sealed silicon ring.

Polyphosphate prevents the formation of scale and corrosion. It also removes algae, silt, rust, dirt, sediment, existing scale, and sand.

  1. AQUACREST AP431 Cartridge

AQUACREST AP431 Whole House Scale Inhibitor Cartridge helps prevent limescale and corrosion from building up.

It’s recommended that you replace the inhibitor every 6 months for effective scale inhibition, but this may vary based on water conditions.

Scale inhibitor cartridge is available in a pack of 3

  1. 3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS

3M Aqua-Pure Whole House Scale Inhibition Inline Water System helps prevent scale build-up on hot water-using appliances such as dishwashing machines, clothes washers, heaters (gas, electric, and tankless style), boilers, and plumbing fixtures (showerheads, faucets, and pipes).

A 304 stainless steel head can be installed on existing copper pipes in the home. Stainless steel is a corrosion-resistant material with long service life.

This filter is tested by NSF International to NSF/ANSI Std; 42 for material and structural requirements only.

It has a 3/4-inch NPT inlet and outlet connections for easy installation and high flow rates. The flow rate is rated for up to 10 GPM.

The system should be connected to a cold water line that feeds the water heater or a point of entry into the house.

It is recommended to change the filter cartridge every 6 months or sooner if you observe a noticeable reduction in water flow rate.

3M Home Water Filtration IAS141T-Whole House Scale Prevention System (Small) up to 37 LPM

  1. Watts premier OneFlow + Salt-Free Scale Prevention and Water Filtration System

OneFlow is a water filtration system with salt-free scale prevention. It also includes the housing that has a head assembly with a pressure relief valve.

Watts’s premier combo system includes a flow+ anti-scale cartridge for scale prevention and a 20-micron carbon block water filter. The 20-micron carbon block filter helps remove taste odors and sediments. Outlet connectors, MPT thread adaptors, locking pins, mounting brackets, and multi-function tools are included in the package as well.

This system can stand upright on the floor or be fixed to the wall with mounting brackets.

You must replace one flow+ cartridge every three years or 250,000 gallons of use and one carbon block annually or 50,000 gallons of use to provide quality water.

The Water Quality Association (WQA) has certified the OneFlow+ system as lead-free according to NSF/ANSI Standard 372; the carbon block is certified according to NSF/ANSI 42; and the anti-scale media is certified according to NSF/ANSI Standard 61.

The system has a maximum flow rate of 10 GPM and should be installed on the cold water service line to condition the tap water just before the service line feeds the residential home.

  1. APPLIED MEMBRANES INC (Ami) Anti-Scale Filter Cartridge for Standard 10″ Filter Housing

Ami Anti-Scale Filter Cartridge fits standard 10-inch filter housing.

It is recommended to change the cartridge at least once every two years.

APPLIED MEMBRANES INC. Anti-Scale Filter Cartridge | Fits 20″ Big Blue Housing

This is an Applied MEMBRANES INC anti-scale filter cartridge that measures 20 inches. The 20-inch fits the 20″ Big Blue Housing.

It is recommended to change the filter every 12 months.

  1. AQUASTAR-H2O 10″x2.5″ Water Softener Filter Cartridge

AQUASTAR-H2O 10″ x 2.5″ Water Softener Filter Cartridge uses ion resin to remove hardness like calcium, magnesium, and iron in tap water.

It is a certified safe food-grade cationic softener resin material for drinking water and to soften hard water effectively.

This cartridge is easy to install, ideal for countertop water purification systems, and fits 10-inch standard housing.

  1. Intelifil (IF-SM-SCIG020B) 20″X4.5″ Big Blue (GAC) Carbon/Polyphosphate Scale Inhibitor/Chlorine Filter

The IntelifilTM Polyphosphate/Granular Activated Carbon Cartridges utilize 42 and are NSF 60 certified clear bead media for scale and corrosion reduction.

The Granular Activated Carbon Cartridges are effective in removing organic contaminants and chlorine.

It should not be used in chlorinated feed water without any bacterial protection such as UV light, KDF, or ceramic filters.

The filter has a nominal micron rating of 10 and is good for removing chlorine’s bad taste and odor, turbidity THMs, dirt, and sediment.

The life of a polyphosphate filter is 12,000 gallons.

  1. Omnipure SCL10-B Scale Inline Water Filter

The Omnipure SCL10-B is a scale inline water filter that has a micron rating of 10 and a flow rate of 5GPM.

The filter will last 6 months or 1250 gallons of water.

Ice machines, water coolers, drinking fountains, under-sink systems, and reverse osmosis systems can all benefit from it.

More Calcium inhibitor filter

Orbit 10109W Mist Calcium Inhibitor Filter

H&G lifestyles Misting System Calcium Inhibitor Filter for Patio Misters Inline Water Filter Effectively Reduce Hard Water Spots, Soften Water, Upgraded Formula

Laurastar Limescale Cartridge for Water Filtering, Set of 3, Black

Laurastar Anti-Scale Water Filter

American Plumber W20CLHD 155405-51 20 Micron Pleated Cellulose Resin Filter – 10 Long by American Plumber

Aquasana Replacement Water Filter Cartridge for Ice Machine and Brewed Beverage System with Scale Inhibition, Antimicrobial Protection, Chloramine, Chlorine, and Cysts Aquasana Pro Series FS-ICE-C-17-R

Honeywell Honeywell Compatible Scale/Sediment Filter, by CFS

Leave a Comment

Your email address will not be published.