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💧 Elevate your hydration game with every drop—because your home deserves the best!
The Pentair Pentek GAC-20BB is a heavy-duty 20-inch granular activated carbon water filter cartridge designed to reduce chlorine taste and odor, improving water quality throughout your home. Certified to NSF/ANSI Standard 42, it ensures reliable contaminant removal with a built-in post-filter to capture carbon fines. Compatible with all 20-inch Big Blue housings, it offers a robust 25,000-gallon capacity at 4 gpm, making it a durable, easy-to-install solution for cleaner, better-tasting water.












| ASIN | B0014C067K |
| Best Sellers Rank | #7,775 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #56 in Replacement Under-Sink Water Filters |
| Brand | Pentek |
| Brand Name | Pentek |
| Customer Reviews | 4.6 out of 5 stars 1,319 Reviews |
| External Testing Certification | NSF, ANSI |
| Global Trade Identification Number | 00051678249437 |
| Included Components | filter |
| Item Dimensions D x W x H | 4.57"D x 19.58"W x 4.57"H |
| Item Type Name | Pentair Pentek GAC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Granular Activated Carbon (GAC) Replacement Cartridge, 20" x 4.5" |
| Item Weight | 5 pounds |
| Manufacturer | Pentair Industries |
| Manufacturer Part Number | 155249-43 |
| Material | Pleated Carbon-Impregnated |
| Material Type | Pleated Carbon-Impregnated |
| Model Number | GAC-20BB |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Benefits | Reduces Chlorine |
| Product Dimensions | 4.57"D x 19.58"W x 4.57"H |
| Set Name | Pentek GAC-20BB Set |
| UPC | 851905124281 051678249437 |
| Unit Count | 1 Count |
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