Filters Fast Logo Header
Free Shipping on orders over $75 | FREE 365-DAY RETURNS

Product Availability

Please provide your e-mail address below to receive a notification when this product becomes available:


Thanks! We'll send you a notification when this product is available!

Compare & Save

Pentek RFC20BB Radial Flow Carbon Filter WRC25HD20

Retail: $99.99
You Save: 22%
Buy 1 - 5 for $77.95 ea.
Buy 6+ for $71.62 ea.
Out Of Stock
Notify me when this is available! guarantee

FiltersFast FF20BBS-25 Replacement for Pentek CTO20BB 4.5"x20"

Retail: $79.99
You Save: 43%
Ready to Ship!
Compare & SaveUse the table below to compare
25 Microns
Micron Rating
25 Microns
Media Type
NSF 42 Certified
NSF 53 Certified
Sign up for the Home Filter Club during checkout.
You choose how often you want your filter, and we take care of the rest.
Are you a purchasing agent? Purchasing for a business?
Contact [email protected] to gain access to case quantity discounts, account management and terms!
Product Information
Pentek RFC20-BB
FiltersFast FF20BBS-25

The Pentek RFC20-BB replacement radial flow carbon water filter, used in place of the WRC25HD20, is a radial flow filter that reduces chlorine taste & odor and other bad tastes, including coarse sand, rust, and scale particles in your water. This whole home water filter features a radial design and extra length that provides a higher flow rate for your whole house. This radial flow carbon filter is also known as WRC25HD20 by American Plumber and as part number 155247.

Pentek RFC20BB Specifications:

  • Part Number: RFC20BB; 155247
  • Micron Rating: 25
  • Service Life: 70,000 gallons (chlorine @ 4 gpm); 6 months
  • Dimensions: 4-1/2"x20"
  • Operating Temperature: 40 - 125°F
  • Flow Rate: 4 GPM @ 0.90 psi drop
  • Reduces Chlorine and Bad Taste & Odor
  • Meets NSF Standard: 42
  • Reduces: Sand, Rust, Dirt and Scale Particles
  • Capacity for Chlorine Reduction: 70,000 @ 4 GPM
  • For more information, view the product manual

The Pentek RFC20-BB fits the following housings:

  • W2010-PR
  • W2015-PR
  • Standard size 20" housings with 4-1/2" diameter

prop 65 California Residents: Prop 65 Warning