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ecoTAC P4R Replacement Filter

replacement filter cartridge for ecoTAC Protector 4 hard water conditioner for tankless water heaters (4 GPM)

ecoTAC P4R Replacement Hard Water Conditioner Filter Cartridge
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ecoTAC P4R Replacement Hard Water Conditioner Filter Cartridge

List Price: US$174.00
Our Price: US$149.95
You save: $24.05




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This replacement cartridge is designed specifically for the ecoTAC Protector 4 hard water conditioner for tankless water heaters.

It can also be used to downgrade the ecoTAC Protector 6 to an ecoTAC Protector 4.

Additionally, this cartridge will fit most other brands of "Big Blue" 4.5 x 20 inch filter housings and many competitor's TAC filters of the same size, particularly the Takagi Product Preservers SM1.0L-RM.

  • Protects the investment in your new water heater
  • Ideal for all brands of tankless and tank-type water heaters
  • Ensures optimal performance and efficiency
  • Maintains water pressure and flow rates
  • Prevents pre-mature heating element / heat exchanger failure
  • Built-in sediment pre-filter
  • No salt, no chemical regeneration, and no brine discharge!
  • No backwash - save thousands of gallons of water per year compared to a traditional water softener
  • When compared to polyphosphate (Siliphos) filters, it is more environmentally friendly and displays superior performance
  • Does not add any chemicals to the water or change its taste, smell, or feel

ecoTAC Protector Series filters will provide benefits where the hardness of the water exceeds 7 grains per gallon or 120 ppm (mg/l), and is strongly recommended where the hardness exceeds 12 grains per gallon or 200 ppm (mg/l). Install on the cold water line prior to your tankless water heater.

Learn More About Water Quality &
Tankless Water Heaters:
ecoTAC P4R Specifications:
Media / Technology: Template Assisted Crystallization Media (TAC)
Dimensions: 4.5" diameter x 20"
fits in most "Big Blue" 20" Filter Housings
Maximum Flow Rate: 4 Gallons per Minute (GPM)
15 Litres per Minute (LPM)
Maximum Hardness: 75 grains per gallon (GPG) / 1,280 ppm (mg/l)
Estimated Cartridge Life: 2 years
For use with : ecoTAC Protector 4
Maximum Pressure: 90 PSI
pH Range: 6.5 to 8.5
Pre-Treatment Conditions: Iron < 0.3 ppm (mg/l)
Manganese < 0.05 ppm (mg/l)
Copper < 1.3 ppm (mg/l)
Chlorine < 3 ppm (mg/l) - city water OK!
Hydrogen Sulfide - none
Polyphosphates & Oils - none


ecoTAC P4R Replacement Hard Water Conditioner Filter Cartridge Reviews

Has saved our hot water heater!5 Stars
After going through 3 on-demand hot water heaters in 5 years (due to hard water), we finally installed a e-tankless filter. It was easy to install (although plumbing tools are needed). Year three, and so far no more problems. The filter is worth the cost. - Melanie