--- product_id: 370118823 title: "Pentair Pentek CRFC20-BB Big Blue Carbon Water Filter, 20-Inch, Whole House" brand: "pentek" price: "6709 kr" currency: ISK in_stock: false category: "Pentek" url: https://www.desertcart.is/products/370118823-pentair-pentek-crfc20-bb-big-blue-carbon-water-filter-20 store_origin: IS region: Iceland --- # 200,000 gallon capacity Fits all 20" Big Blue housings 75% chloramine & chlorine reduction Pentair Pentek CRFC20-BB Big Blue Carbon Water Filter, 20-Inch, Whole House **Brand:** pentek **Price:** 6709 kr **Availability:** ❌ Out of Stock ## Summary > πŸ’§ Elevate your hydration game with crystal-clear confidence! ## Quick Answers - **What is this?** Pentair Pentek CRFC20-BB Big Blue Carbon Water Filter, 20-Inch, Whole House by pentek - **How much does it cost?** 6709 kr with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/370118823-pentair-pentek-crfc20-bb-big-blue-carbon-water-filter-20) ## Best For - pentek enthusiasts ## Why This Product - Trusted pentek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Pressure Perfect:** Maintains optimal water pressure with minimal drop, ensuring smooth flow throughout your home. - β€’ **Endless Pure Flow:** Filters up to 200,000 gallons annuallyβ€”keep your water crisp all year long. - β€’ **Chloramine Crusher:** Superior reduction of chloramine and chlorine for cleaner, fresher tasting water. - β€’ **Fine Particle Fighter:** Unique design minimizes carbon fines, delivering crystal-clear water without grit. - β€’ **Universal Fit, Zero Hassle:** Seamlessly replaces any 20" x 4.5" carbon filter in Big Blue housings for instant upgrade. ## Overview The Pentair Pentek CRFC20-BB is a 20-inch whole house carbon water filter cartridge designed to reduce chloramine, chlorine, and sediment effectively. With a 25-micron rating and NSF certification, it fits all standard 20" Big Blue housings and offers up to 200,000 gallons of filtration capacity. Its advanced granular activated carbon media and unique design reduce carbon fines and maintain water pressure, delivering fresher, cleaner water for residential and commercial use. ## Description The Pentair Pentek CRFC20-BB is a 20-inch Big Blue carbon water filter cartridge designed for whole house chloramine and chlorine taste and odor reduction. It uses advanced granular activated carbon (GAC) media housed within a polyethylene outer shell with a spun polypropylene inner wrap and core to deliver consistent filtration performance at 25 micron nominal.The CRFC20-BB provides chlorine reduction capacity of over 200,000 gallons at 4 GPM and chloramine reduction capacity of 25,000 gallons at 2.5 GPM or 10,000 gallons at 5 GPM. A spun polypropylene post-filter captures carbon fines before they reach your water supply, and Santoprene gaskets ensure a secure seal within the housing. Pressure drop is approximately 2.5 PSI at 5.0 GPM and less than 1 PSI at 2.5 GPM.This cartridge measures 4.5" x 20" and fits all standard 20-inch Big Blue filter housings. It is suitable for use in residential whole house water treatment systems. Replace every year or when you notice a drop in water pressure or water quality. Operating temperature range is 40-100 degrees F. ## Features - REDUCES CHLORAMINE AND CHLORINE taste and odor along with sediment down to 25 microns, delivering cleaner, better-tasting water throughout your home - ADVANCED GAC MEDIA with spun polypropylene inner wrap and post-filter minimizes carbon fines in filtered water, a common issue with standard granulated carbon canisters - HIGH CAPACITY CHLORINE REDUCTION rated for over 200,000 gallons at 4 GPM, with chloramine reduction capacity of 25,000 gallons at 2.5 GPM - FITS ALL 20" BIG BLUE FILTER HOUSINGS and can replace any 20" x 4.5" carbon filter cartridge for whole house water filtration applications - REPLACE EVERY YEAR or when you notice a decrease in water pressure or a change in water quality; operating temperature range of 40-100 degrees F ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004VRB3DQ | | Brand | pentek | | Customer Reviews | 4.9 4.9 out of 5 stars (23) | | EU Spare Part Availability Duration | 1 Years | | Enclosure Material | Polypropylene (PP) | | External Testing Certification | NSF | | Global Trade Identification Number | 00051678967430 | | Included Components | Carbon Water Filter | | Item Dimensions D x W x H | 11.4D x 11.4W x 50.8H Centimeters | | Item Highlight | 25-Micron GAC Carbon Reduces Chloramine and Chlorine Taste and Odor, 200,000-Gallon Chlorine Capacity | | Item Type Name | Carbon Water Filter | | Item Weight | 3.45 Pounds | | Manufacturer | Pentair Industries | | Manufacturer Part Number | 155967-43 | | Model number | CRFC-20BB | | Number of Items | 1 | | Product Benefits | Chloramine,Reduces Chlorine,Reduces Sediment | | UPC | 051678967430 807032972240 | | Unit Count | 1.0 Count | ## Product Details - **External Testing Certification:** NSF - **Item Weight:** 3.45 Pounds - **Material:** Polypropylene (PP) - **Product Benefits:** Chloramine,Reduces Chlorine,Reduces Sediment - **Product Dimensions:** 11.4D x 11.4W x 50.8H Centimeters ## Images ![Pentair Pentek CRFC20-BB Big Blue Carbon Water Filter, 20-Inch, Whole House - Image 1](https://m.media-amazon.com/images/I/51YkIexJ1rL.jpg) ![Pentair Pentek CRFC20-BB Big Blue Carbon Water Filter, 20-Inch, Whole House - Image 2](https://m.media-amazon.com/images/I/21+lqRaekML.jpg) ![Pentair Pentek CRFC20-BB Big Blue Carbon Water Filter, 20-Inch, Whole House - Image 3](https://m.media-amazon.com/images/I/517IL9S27DL.jpg) ![Pentair Pentek CRFC20-BB Big Blue Carbon Water Filter, 20-Inch, Whole House - Image 4](https://m.media-amazon.com/images/I/51Hku6yuX-L.jpg) ![Pentair Pentek CRFC20-BB Big Blue Carbon Water Filter, 20-Inch, Whole House - Image 5](https://m.media-amazon.com/images/I/41legXLQnZL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Do you have drop in water pressure?** A: We have had no drop in pressure. It is a great filter I have several larger micron filters in front of this one to capture some of the larger particles so this one will last longer and has worked out great. **Q: How long do these last. Average use 2 people in house.** A: I run 35000 gallons through them which for a house of 3 lasts about nine months. **Q: Does the 10" filter out Chloramine?** A: Yes. Chloramine Taste & Odor Reduction (3.0-0.5 ppm) @ flow rate (gpm): 10,000 gallons @ 5 gpm 25,000 gallons @ 2.5 gpm **Q: How long do these last** A: I replace every 4 months but we go through a lot of water ## Frequently Bought Together - Pentair Pentek CRFC20-BB Big Blue Carbon Water Filter, 20-Inch, Whole House Chloramine Reduction Carbon Replacement Cartridge, 20" x 4.5", 25 Micron - Pentair Pentek DGD-5005-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 5 Micron, Pack of 1, White - Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/370118823-pentair-pentek-crfc20-bb-big-blue-carbon-water-filter-20](https://www.desertcart.is/products/370118823-pentair-pentek-crfc20-bb-big-blue-carbon-water-filter-20) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-10-08*