Top 8 Phosphate Water Filter – Replacement Under-Sink Water Filters

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1. Omnipure

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Omnipure Q5486 Q-Series GAC and Phosphate Water Filter

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Omnipure #ad - Ideal for use with coffee equipment, or anywhere you need carbon filtration with scale reduction. Fits standard Omnipure Q-series heads. Carbon filtration with scale reduction.
BrandOmnipure #ad
ManufacturerOmnipure #ad
Height8 Inches
Length2.5 Inches
Weight0.95 Pounds
Width2.5 Inches
Part NumberQ5486
ModelQ5486

2. EXPRESS WATER

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And 1” Inch Connections, Express Water WH100SP Anti Scale Whole House Filter – Home Water Filtration System – Polyphosphate Conditioner – includes Pressure Gauge, Blue, Easy Release

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EXPRESS WATER #ad - The best filtration - made with food-grade slow dissolve sodium polyphosphate crystal beads giving you maximum chemical absorption. Water when you need it - large easy flow filters and high flow connections keep your water pressure high. Protect your home from scale - protect the entire house from scale and filter algae, sand, sand, sediment, silt, and rust. Don’t waste time on maintenance - Our quick and easy to understand design means you can swap out filters quick and easy.
BrandEXPRESS WATER #ad
ManufacturerExpress Water #ad
Height28.75 Inches
Length7.25 Inches
Width8 Inches
Part NumberWH100SP
ModelWH100SP

3. Pentek

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Fits #10 Slim Line Filter Housing, Pentair Pentek PCC212 Phosphate Water Filter, Under Sink Hexametaphosphate Crystal Replacement Cartridge, 10-Inch

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Pentek #ad - Recommended for ice, water heaters, coffee and vending machines, AC equipment and many other types of water processing equipment. Designed to fit #10 standard or #10 Slim Line Filter Housing. Effective for preventing lime and scale deposits and treating corrosion and iron problems. Contain hexametaphosphate crystals that dissolve slowly in water to inhibit scale and rust build-up. Replace every 6 months or when you notice a drop in water pressure or water quality.
BrandPentek #ad
ManufacturerPentair Industries #ad
Height9.75 Inches
Length2.63 Inches
Weight1.26 Pounds
Width2.63 Inches
Part Number155248-43
ModelPCC212
Warranty1 year

4. Omnipure

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Omnipure K2586 Inline K-Series GAC with Phosphate Filter, 4 Oz

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Omnipure #ad - Body size: 2" x 10". Tested and certified by nsf international against ANSI/NSF Standard 42 for Taste and Odor Reduction and Chlorine Reduction Class I. Capacity: 6 months/1, 250 gallons, Fitting Size: 1/4" For quick connect fittings Omnipure. Flow rate: 050 gpm 1. 9 lpm. Maximum pressure: 125 PSIG. Temperature: 35-100o F 2-38o C.
BrandOmnipure #ad
ManufacturerOmnipure #ad
Height2 Inches
Length10 Inches
Weight0 Pounds
Width2 Inches
Part NumberK2586-JJ
ModelK2586-JJ

5. Pentek

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Pentair Pentek PCC218 Phosphate Water Filter, Under Sink Hexametaphosphate Crystal Replacement Cartridge, Fits #10 Standard and #10 Slim Line Filter Housings, 10-Inch

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Pentek #ad - Designed to fit #10 standard or #10 Slim Line Filter Housing. Replace every 6 months or when you notice a drop in water pressure or water quality. Effective for preventing lime and scale deposits and treating corrosion and iron problems. Recommended for ice, water heaters, coffee and vending machines, AC equipment and many other types of water processing equipment. Contain hexametaphosphate crystals that dissolve slowly in water to inhibit scale and rust build-up.
BrandPentek #ad
ManufacturerPentair Industries #ad
Height10.88 Inches
Length3.25 Inches
Weight1.68 Pounds
Width3.25 Inches
Part Number155251-43
ModelPCC218
Warranty30 day manufacturer

6. Pentek

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10-Inch, Pentair Pentek PCC-1 Phosphate Water Filter, Under Sink Hexametaphosphate Crystal Replacement Cartridge, Fits #10 Standard Filter Housing

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Pentek #ad - Contain hexametaphosphate crystals that dissolve slowly in water to inhibit scale and rust build-up. Designed to fit #10 standard filter housing not compatible with #10 Slim Line Filter Housing. Effective for preventing lime and scale deposits and treating corrosion and iron problems. Recommended for ice, water heaters, coffee and vending machines, AC equipment and many other types of water processing equipment. Replace every 6 months or when you notice a drop in water pressure or water quality.
BrandPentek #ad
ManufacturerPentair Industries #ad
Height2.82 Inches
Length9.68 Inches
Weight1.76 Pounds
Width2.82 Inches
Part Number155100-43
ModelPCC-1

7. Max Water

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Corrosion Inhibition and Iron Control, Max Water Siliphos Anti-Scale Filter Media Bag variation 5 LB compatible with Refillable Phosphate Anti-Scale Water Filters, Good for Scale Prevention

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Max Water #ad - Iron control - used to sequester dissolved iron up to 10 ppm; Great for reducing discoloration and metal taste for water and helps prevent iron from staining sinks, showers and toilets.

Scale prevention - used to sequester water hardness, inhibit precipitation, and formation of mineral deposits in pipes & appliances. Corrosion inhibition - used to form a protective coating on metal surfaces and provide corrosion protection against acidity, alkalinity, and many other mineral salts which may lead to the "rusting out" of water system pipes and equipment. Shards can still be used as normal, and may allow you to squeeze a bit more material into a filter housing. Brand: Max Water. Note: due to the nature of the material, siliphos balls may crack into shards during shipping.
BrandMax Water #ad
ManufacturerMax Water #ad

8. Max Water

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Good for Scale Deposits, Max Water 1x 20 BB Whole House 20" x 4.5" Anti-Scale Phosphate Water Filter Compatible with 20BB Whole House Systems, Algae, Corrosion

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Max Water #ad - Our phosphate anti-scale filter uses Siliphos balls to help protect pipes from scale deposits, corrosion, and cleans out algae from inflowing water.

All filters are individually wrapped. This compound will eventually clean any pipes connected to he system and will prevent 'brown' or 'red' water, and clogged pipes and save expensive repairs/replacement of water pipes, cooling systems, boilers, heaters, etc. Size 20 inch x 4. 5 inch fits most bb 20 inch size housings and most Reverse Osmosis systems. Siliphos is great for reducing scale build up in Domestic Water Systems, Vending Machines, Refrigeration equipment, etc.
BrandMax Water #ad
ManufacturerMax Water #ad
Part Number104132