Watts FPIR-BB-20 20" Big Blue Iron Filter Replacement Cartridge

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Manufacturer: Watts

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List Price: $120

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Watts FPIR-BB-20 20" Big Blue Iron Filter Replacement Cartridge

Watts FPIR-BB-20 20" Big Blue Iron Filter Replacement Cartridge


Watts 20" Radial Flow Iron Reduction Big Blue Iron Filter Replacement Cartridge

Part#: FPIR-BB-20

Reduces up to 3 parts per million (3 PPM) of dissolved iron from water. The Watts FPIR-BB-20 improves the metallic taste caused by too much iron in water. It will also reduce the orange and brown staining which is commonly found in sinks, toilets, tubs, and other plumbing fixtures due to overly high iron content in water.

Perfect solution for cottages, vacation homes, primary residences, offices and businesses where electrcity, drain lines or backwashing cannot be accessed or simply dont want to be used.  Replace the cartridge when lifespan is reached!

  • No electricity
  • No drain lines
  • No backwash
  • No wasted water


Temp. Range: 40-100 F
Flow Rate: 4-6 gallons per minute (4-6 GPM)
Dimensions: 20" x 4 1/2" (Big Blue/Full Flow)
Filter Life: About 6 months or 40,000 gallons @ 3 PPM ferrous iron

Note:  Lifespan may vary depending on usage and water chemistry

Recommended Operating Parameters

pH: Greater than 7.0
Silica: Less than 100 ppm
Manganese: Less than 1 ppm
Iron: Less than 3ppm
Iron Bacteria: None
Hydrogen Sulfide: None

The Watts FPIRBB20 Iron-Reducing Filter does not add any harmful chemicals to your water, making it safe to use for drinking water applications. It will also help to prevent damage to appliances caused by high iron content in the water supply. The FPIR-BB-20 should be installed on the main cold water line only after the pressure tank or water meter. It will fit in all 20 inch Big Blue filter housings by Culligan, Ametek, Pentek, US Filter, Plymouth Products, American Plumber, and others that use 20" x 4.5" Big Blue/Full Flow filters.

Note:  Water conditions outside of the above-specified limits may shorten the life of this filter. For best results, use of pre-sediment and post-carbon treatment is recommended in conjunction with this filter.

Additional Information

Manufacturer Watts
UPS Ground Free Shipping No
Weight 14.0000

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