Top 9 Scale Inhibitor Water Filter – Replacement Under-Sink Water Filters

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1. Waterdrop

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Waterdrop Whole House Scale Inhibitor Inline Water System, Replacement for Aqua-Pure AP430SS, Prevent Scale Build Up On Hot Water Heaters and Boilers, 304 Stainless Steel

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Waterdrop #ad - Prevent scale deposits - does your home have very hard water? The polyphosphates in our Scale Inhibitor Water Filter System can help put a stop to the gradual buildup of limescale along your pipes. Each cartridge can last 6 months with regular use, which will vary based on water conditions.

Protect your appliances - this scale inhibitor system helps keep your water heaters, hot water using appliances, and plumbing fixtures protected from scale buildup while also maintaining efficiency and saving energy. Throughout this time frame, you will get maximum performance. High flow rate - the 3/4" npt inlet/outlet connections of our water scale inhibitor ensure a powerful flow rate of up to 10 GPM.

Extended lifespan - enjoy clean water by your scale inhibitor Water Filter System. Premium material - scale inhibitor water filter system is equipped with a firm and rust-less 304 stainless steel connector, BPA-free plastic, which is durable and less prone to be damaged. Stable flow is also ensured with large water flow. Whole house scale filter employs food-grade, providing with safe water.
BrandWaterdrop #ad
ManufacturerWaterdrop #ad

2. Fette Filter

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Water Filter Cartridge Compatible with AP431 Hot Water Scale Inhibitor for AP430SS Pack of 3, Fette Filter

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Fette Filter #ad - Contains - 3 premium water filter Cartridges that prevent limescale and corrosion from building up that will prevent corrosion and blockage of your pipelines. Quality - it's recommended that you should replace the inhibitor every 6 months for the most effective scale inhibition this will vary based on water conditions of your home.

Premium Quality Filters. Interchangeable with 3m ap430, ap430SS & SF18-S Scale Inhibition System. Excellent premium - this filter material can protect and extend the service life of your home water appliances like heaters, dishwashers, and other systems. Compatible models - compatible for 3m ap431, hf8-s, kw431. Flow rate is up to 10 gpm so it meet's water demand for your entire home. With its precise design it delivers a perfect fir for no water leakage.
BrandFette Filter #ad
ManufacturerFette Filter #ad

3. KleenWater

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Aqua-Pure AP420 Compatible Filter, Prevents Scale Build-Up On Water Heaters Standard and Tankless, KleenWater KW420 Hot Water Protector and Scale Inhibitor, Set of 3

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KleenWater #ad - Protects hot water Heaters From Corrosion and Hardness. Alternative cartridge for ge, 3M Aqua-Pure, Pentek, American Plumbe and Other Popular Filters.3m aqua-pure hot water protector and Scale Inhibitor Alternative Water Filter by KleenWater. Compatible repleacement for Selecto Scientific 101-260 ScaleOUT. 3 low cost / high Quality Replacement Alternative Cartridges.
BrandKleenWater #ad
ManufacturerKleenWater #ad
Part NumberKW420-Qty3
ModelKW420-Qty3

4. KleenWater

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Set of 6, KleenWater High Temperature Water Filters, Maximum Temperature 180 Degrees, 2.5 x 9.75 Inch with Scale Inhibitor

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KleenWater #ad - Made in the usa of 100% FDA Compliant Polypropylene. 6 high temperature water Filter Cartridges - maximum temperature 180 degrees Fahrenheit. Dirt rust and sediment filtration, 5 micron, grooved surface to extend service life. Manufactured with an integrated 3 stage process yielding true depth filtration. Polyphosphate for Scale and Corrosion Protection.
BrandKleenWater #ad
ManufacturerKleenWater #ad
Part NumberKW2510SWHT-Qty6
ModelKW2510SWHT-Qty6

5. KleenWater

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Set of 3, Polyphosphate Scale Inhibitor, 3M Cuno Aqua-Pure CFS8112-S Compatible Filter, KleenWater KWC-5M-KDF-P Replacement Carbon Water Filter Cartridge

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KleenWater #ad - 3m cuno cfs8112-s part# 55817-08 alternative replacement water filter by KleenWater, Set of 3. Great for ice machines or soda fountains. Made in the usa, 5 micron filtration 10, 000 gallon capacity at 1. 67 gallon per minute flow rate. Fits cuno food service models: 1-s, 4-2h bunn eq-tl-1, 2-s, 4-s, replacement cartridge for CFS8576-S CFS6112-S systems. Granulated activated carbon block filter with polyphosphate scale inhibitor.
BrandKleenWater #ad
ManufacturerKleenWater #ad
Height3 Inches
Length13 Inches
Width3 Inches
Part NumberKWC-5M-KDF-P-CFS8112-S-3Set
ModelKWC-5M-KDF-P-CFS8112-S-3Set

6. KleenWater

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KleenWater KWC-5M-KDF-P Replacement Carbon Water Filter Cartridge, 3M Cuno Aqua-Pure CFS8112-S 55817-08 Compatible Filter, Polyphosphate Scale Inhibitor

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KleenWater #ad - Granulated activated carbon block filter with polyphosphate scale inhibitor. 3m cuno cfs8112-s part# 55817-08 alternative replacement water filter by KleenWater. Great for ice machines or soda fountains. Made in the usa, 5 micron filtration 10, 000 gallon capacity at 1. 67 gallon per minute flow rate. Fits cuno food service models: 1-s, 2-s, 4-2h bunn eq-tl-1, 4-s, replacement cartridge for CFS8576-S CFS6112-S systems.
BrandKleenWater #ad
ManufacturerKleenWater #ad
Height3 Inches
Length13 Inches
Weight2.01 Pounds
Width3 Inches
Part NumberA-KWC-5M-KDF-P-CFS8112-S
ModelA-KWC-5M-KDF-P-CFS8112-S

7. Omnipure

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OmniPure OMB934-10M-P 10 Micron 10 Inch Carbon FIlter With Polyphosphate Scale Inhibitor

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Omnipure #ad - Activated carbon block reduces chlorine, sediment, and many organic contaminants. Polypropylene sheath captures sediment and prolongs carbon life. Polyphosphate sequesters and inhibits hardness minerals like calcium from forming scale. 10, 000 gallon chlorine reduction capacity.
BrandOmnipure #ad
Height10 Inches
Length2.75 Inches
Weight1.05 Pounds
Width2.75 Inches
Part NumberOMB934-10M-P

8. American Filter Company

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American Filter Company 3- Pack TM Brand Water Filters AFC-420 Comparable with Aqua-Pure R AP420 5527407 55274-07 Hot Water Protector/Scale Inhibitor Water Filter Cartridge 3

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American Filter Company #ad - Made in the USA. Flow rate: 05gpm 1:89 lpm - 2. 0 gpm/7. 56 lpm. Max pressure: 125 psi. Micron rating: 05 microns.
BrandAmerican Filter Company #ad
ManufacturerAmerican Filter Company #ad

9. KleenWater

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Maximum Temperature 180 degrees, 3 Pack, 2.5 x 9.75 Inch with Scale Inhibitor, KleenWater High Temperature Water Filters

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KleenWater #ad - Made in the usa of 100% FDA Compliant Polypropylene. Polyphosphate for Scale and Corrosion Protection. Dirt rust and sediment filtration, 5 micron, grooved surface to extend service life. Manufactured with an integrated 3 stage process yielding true depth filtration. High temperature water Filter Cartridge - maximum temperature 180 degrees Fahrenheit.
BrandKleenWater #ad
ManufacturerKleenWater #ad
Part NumberKW2510SWHT(3)
ModelKW2510SWHT(3)