Pentek RFC20-BB 25 Micron 20×4.5 Whole House Radial Flow Carbon Filter 6 Pack. Pentek Model Number: RFC20-BB. “50,000 and up”. 2.5 – 5.0. 155247, 175792, 155247-43, 56027-01, AP817, RFC20-BB, RFC-20BB. The Pentek RFC-20BB (6-Pack) water filter cartridge is a Big Blue filter that reduces chlorine taste and odor. The whole house RFC-20BB is a very popular choice, due to its outstanding flow rate. The lifespan of this filter depends on water quality, but it is rated for up to 100,000 gallons of chlorine removal at 4 gallons per minute. The RFC-20BB is a great way to provide cleaner, better-tasting water to your entire house with this filter. Enjoy minimal maintenance with only 2-3 filter changes each year. Highly effective for chlorine taste and odor reduction. Granular Activated Carbon in a Radial Flow Design. “Limits small black specks (carbon fines) in your water better than most GAC water filters, due to the radial flow design”. Great for high flow rate applications. Your filters are guaranteed to be the right fit! Our customer service team is guaranteed to answer your call! You’re guaranteed to find expert help! If you need assistance placing your new order please let us know how we can help! The item “Pentek RFC20-BB 25 Micron 20×4.5 Whole House Radial Flow Carbon Filter 6 Pack” is in sale since Tuesday, September 22, 2015. This item is in the category “Home & Garden\Home Improvement\Plumbing & Fixtures\Water Filters”. The seller is “discountfilterstore” and is located in Minneapolis, Minnesota. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia, South africa, New Zealand.