RainSoft P-12 Comparable Tier1 Replacement Filter Cartridge

Price $81.99
Availability: In Stock
Designed to fit RainSoft systems requiring the P-12 Filter Cartridge
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  • 1 Filter $81.99  
  • 3 Filters Price $77.14 each
  • 6 Filters Price $73.79 each
  • Ships fast!
  • Works with a wide range of RainSoft Hydrefiner models
  • Reduces contaminants down to 10 microns in size
  • Difficult to find, uniquely sized replacement filter cartridge
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Tier1 US-WF0140 Filter

The RainSoft P-12 Hydrefiner comparable replacement filter comparable by Tier1 offers carbon block filtration to ensure excellent tasting drinking water. Highly porous carbon serves as an excellent filter media since it can capture very small particles. This filter provides contaminant reduction for sediment, dirt, silt, sand, and chlorine taste and odor. With a unique and proprietary sizing this replacement offers the replacement filter component for select models listed below and in the comparables tab. Order the RainSoft P-12 Hydrefiner Comparable Replacement Filter comparable by Tier1 today!

Compatibility and Installation

The Tier1 US-WF0140 Cartridge fits Hydrefiner Model numbers 9875, 9878, 9879, 17561, 17366, 13199 and others. The Tier1 US-WF0140 Cartridge features a 1/2-inch FPT Screw On Cap. End caps are bacteria resistant and provide a tight seal for top quality water filtration. Note: is it important to keep the threaded part of the housing cap as it will be needed for the installation of the replacement filter.

Package Qty 1
Used In Brands Rainsoft, Tier1
Manufacturer's Id US-WF0140
UPC 641945745733
Actual Size (in) 6 inches (length) x 4 1/2 inches (outside diameter)
Actual Size (cm) 15.24 x 11.43
Media Carbon Block
Primary Filter Media Activated Carbon Block
Filter Life (months) 6 months
Micron Rating (Nominal) 10
Color White
Warranty Guarantee Unconditional Product Guarantee for Life of the Product
Primary Filter Media Carbon Block

Reduced Contaminants

The TIER1-US-WF0140 reduces the following contaminants:

  • Chlorine Taste & Odor
  • Dirt
  • Sand
  • Sediment
  • Silt

The TIER1-US-WF0140 is comparable with the following part numbers


The TIER1-US-WF0140 fits the following model numbers

9875 9878
9879 17561
17366 1319


  1. When taking the old filter out, make sure the threaded part of the housing cap is saved for installation of the new filter
  2. This 'nipple' may come off in the old filter when it is removed--DO NOT throw the 'nipple' away, it must be reused

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