Discount Water Filters and Air Filters at Discount Filter

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

RFC-20BB Whole House Filter Replacement Cartridge by Tier1

More Views

RFC-20BB Whole House Filter Replacement Cartridge by Tier1

Save 39% (MSRP: $56.99)

Quick Overview

Fits most 20X4.5 housings
5 5


The RFC-20BB Whole House Filter Replacement Cartridge by Tier1 provides a large surface area, which increases filtration effectiveness. This greater surface area in turn allows a high flow rate. This filter will last you up to 6 months, or every 100,000 gallons which equates to 4 gallons per minute, whichever comes first. This typically evens out to only 2-3 filter changes per year. The Tier1 RFC-20BB does an exceptional job of taking out chlorine taste an odor, or your money back!

  • Big Blue sized filter cartridge, provides greater surface area
  • High flow rate
  • Filter life of 100,000 gallons
  • Reduces contaminats such as chlorine taste and odor


Package Qty 1
Used In Brands Pentek
Manufacturer's Id RFC-20BB
UPC 641945742428
Advertised Size (in) 20 x 4-1/2
Actual Size (in) 20 inches (Length) x 4.5 inches (Outside Diameter)
Actual Size (cm) 50.8 x 11.43
Media Radial Flow Granular Activated Carbon
Materials of Construction Porous Polyethylene
Filter Life (gallons) 100,000
Filter Life (liters) 378541
Filter Life (months) 6 months
Micron Rating (Nominal) 25
Operating Temperature (°F) 40 - 125
Operating Temperature (°C) 4.4 - 51.7
Maximum Temperature (°F) 125
Flow Rate (gpm) 4
Color / Finish White
Warranty Guarantee Unconditional Guarantee for Life of the Product
Includes One Tier1 20 x 4.5 inch granular activated carbon replacement filter
Primary Filter Media Granular Activated Carbon


Reduces the following contaminants:


The TIER1-RFC-20BB is comparable with the following part numbers


Replacement for the Following UPC