--- product_id: 4513526 title: "Pentair Pentek GAC-BB Big Blue Granular Activated Carbon Water Filter" brand: "pentek" price: "S$106" currency: SGD in_stock: true category: "Pentek" url: https://www.desertcart.sg/products/4513526-pentair-pentek-gac-bb-big-blue-granular-activated-carbon-water store_origin: SG region: Singapore --- # 12,500 gallon capacity Fits all 10" Big Blue housings NSF certified for safety Pentair Pentek GAC-BB Big Blue Granular Activated Carbon Water Filter **Brand:** pentek **Price:** S$106 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your home’s hydration game with Pentair’s powerhouse carbon filter! ## Quick Answers - **What is this?** Pentair Pentek GAC-BB Big Blue Granular Activated Carbon Water Filter by pentek - **How much does it cost?** S$106 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/4513526-pentair-pentek-gac-bb-big-blue-granular-activated-carbon-water) ## 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 - • **Certified Peace of Mind:** NSF International tested and certified—because your health deserves verified protection. - • **Pure Taste, Zero Compromise:** Effectively reduces bad taste & odors for crisp, clean water throughout your home. - • **Built to Last, Filter to Trust:** Handles up to 12,500 gallons before replacement, ensuring long-lasting performance and fewer filter swaps. - • **Universal Fit, Instant Upgrade:** Seamlessly replaces any 10" x 4.5" carbon filter cartridge in heavy-duty housings—no hassle, just pure refreshment. - • **Cleaner Water, Clearer Confidence:** Post-filter technology minimizes carbon fines and suspended particles for pristine water clarity. ## Overview The Pentair Pentek GAC-BB Big Blue Carbon Water Filter is a 10" x 4.5" granular activated carbon cartridge designed for whole-house filtration. It fits all standard 10" heavy-duty housings, reduces chlorine, bad tastes, and odors, and features a post-filter to reduce carbon fines. NSF certified and capable of filtering up to 12,500 gallons, it offers a reliable, long-lasting solution for cleaner, better-tasting water. ## Description The Pentair Pentek GAC-BB is a 10-inch Big Blue whole-house cartridge filled with granular activated carbon (GAC) to reduce chlorine taste and odor and other unwanted tastes and odors from your water. It is designed for maximum contact between the water and the carbon bed, so water enters one end and passes through the full length of carbon before it exits.An internal expansion pad minimizes channeling and bypass, keeping contact time consistent as the cartridge works. Before water leaves the cartridge, a post-filter, permanently fastened to a support basket, reduces carbon fines and other suspended particles so they do not carry downstream.Measuring 10" x 4.5", the GAC-BB fits all 10-inch Pentair Pentek Big Blue and other heavy-duty housings and provides roughly 12,500 gallons of general-purpose drinking water filtration at a low 4 psi drop at 2 gpm. After installing, flush the cartridge before use. Replace about every 3 months, or sooner if taste and odor return or flow drops. ## Features - BETTER-TASTING WHOLE-HOUSE WATER - Granular activated carbon reduces chlorine taste and odor along with other unwanted tastes and odors, for cleaner, fresher general-purpose drinking water throughout your home. - POST-FILTER REDUCES CARBON FINES - A post-filter permanently secured to an internal support basket captures carbon fines and suspended particles, while an internal expansion pad minimizes channeling and bypass for consistent contact time. - DURABLE CARBON CONSTRUCTION - Built with a granular activated carbon bed, spun polypropylene post-filter, and polystyrene end caps and casing; rated for water up to 125°F with a low 4 psi drop at 2 gpm. - FITS 10-INCH BIG BLUE HOUSINGS - Measures 10" x 4.5" and fits all 10-inch Pentair Pentek Big Blue and other heavy-duty housings; drops in to replace any 10" x 4.5" carbon cartridge. - 12,500-GALLON CAPACITY - Delivers roughly 12,500 gallons of filtration; replace about every 3 months, or sooner when you notice a drop in water pressure or a return of taste and odor. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004VN9W24 | | Best Sellers Rank | #7,835 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #59 in Replacement Under-Sink Water Filters | | Brand Name | Pentek | | Customer Reviews | 4.6 4.6 out of 5 stars (1,315) | | External Testing Certification | NSF | | Global Trade Identification Number | 00051678153437 | | Item Dimensions D x W x H | 4.5"D x 4.5"W x 10"H | | Item Type Name | GAC Carbon Water Filter | | Item Weight | 1.1 pounds | | Manufacturer | Pentair Industries | | Manufacturer Part Number | 155153-43 | | Material Type | Granular Activated Carbon | | Model Number | GAC-BB | | Number of Items | 1 | | Product Benefits | Reduces Chlorine, Removes Odor | | Set Name | Big Blue | | UPC | 806294985388 115971043434 809390004274 807032973599 182682383012 132017519012 808112761594 163120784356 851905131616 700999878092 051678153437 798527397412 643749295803 | | Unit Count | 1 Count | ## Product Details - **External Testing Certification:** NSF - **Item Weight:** 1.1 pounds - **Material:** Granular Activated Carbon - **Product Benefits:** Reduces Chlorine, Removes Odor - **Product Dimensions:** 4.5"D x 4.5"W x 10"H ## Images ![Pentair Pentek GAC-BB Big Blue Granular Activated Carbon Water Filter - Image 1](https://m.media-amazon.com/images/I/61RyDgqWsdL.jpg) ![Pentair Pentek GAC-BB Big Blue Granular Activated Carbon Water Filter - Image 2](https://m.media-amazon.com/images/I/414lvyI1SpL.jpg) ![Pentair Pentek GAC-BB Big Blue Granular Activated Carbon Water Filter - Image 3](https://m.media-amazon.com/images/I/517IL9S27DL.jpg) ![Pentair Pentek GAC-BB Big Blue Granular Activated Carbon Water Filter - Image 4](https://m.media-amazon.com/images/I/51Pv3LITlgL.jpg) ![Pentair Pentek GAC-BB Big Blue Granular Activated Carbon Water Filter - Image 5](https://m.media-amazon.com/images/I/41yHSTt6MbL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: Why is this filter not suitable for whole house use?** A: To give an updated answer on why we don't recommend this for whole house is that although it has removal capacity which would work for high volume situations, the post filter (part that keeps the carbon from flowing out the exit) is small and not made for whole house applications where you might be running multiple taps at one time. It is also not recommended for high sediment applications without a pre-filter for the same reason. The small post filter could plug more quickly than the capacity of the carbon is exhausted. The filter in this size that we recommend is the Pentek rfc-bb radial flow carbon filter. Careful because there are a lot of imposters advertised as 'compatible.' The current link to Amazon's site for this one is: https://www.amazon.com/Pentek-Radial-Flow-Granular-Activated-Cartridge/dp/B001VXW0VC/ref=sr_1_4?crid=3N8Y5XCPP59LO&keywords=pentek%2Brfc-bb%2Bradial%2Bflow%2Bcarbon%2Bfilter&qid=1584447075&sprefix=Pentek%2Brfc-bb%2Caps%2C246&sr=8-4&th=1 The RFC-BB is designed for whole home use and has a full prefilter and full post filter. It is rated to remove chlorine taste and odor for more than 50,000 gallons at 2 gpm as compared with the GAC-BB which is rated at 12,500 gallons. It also has a lower pressure drop (0.9 psi at 2 gpm compared to 4 psi at 2 gpm.) The link for our specification sheet is here: https://www.pentair.com/content/dam/extranet/filtration/north-america/residential/spec-sheets/310075-pentek-rfc-series-spec-sheet.pdf If you have any other questions about correct filter choice for your application, call our technical support team (USA based) at (800) 279-9404. **Q: Allthough it says 6 microns as part of the filter, can anyone tell me what the actual rating is? I'm looking for a 0.5 micron filter to remove cysts** A: A 6 micron filter will not remove 0.5 micron cysts. You need a sub-0.5 micron filter to remove 0.5 micron cysts. **Q: Why doesn't this have a Micron rating?** A: This cartridges uses loose fill granular activated carbon media. The void volume of the loose media is too large to support a micron rating. **Q: What is the flow rate with 60-70 psi water pressure?** A: Depends on what your regulator is set at I'm running mine at 60psi it flows great we're on well water it's been over a year now buy a spare because the water pressure will drop with out notice when it's time to change out your filter ## Frequently Bought Together - Pentair Pentek GAC-BB Big Blue Carbon Water Filter, 10-Inch, Whole House Heavy Duty Granular Activated Carbon (GAC) Replacement Cartridge, 10" x 4.5" - Pentair Pentek DGD-5005 Big Blue Water Filter, 10-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 10" x 4.5", 5 Micron, Pack of 1 - 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? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/4513526-pentair-pentek-gac-bb-big-blue-granular-activated-carbon-water](https://www.desertcart.sg/products/4513526-pentair-pentek-gac-bb-big-blue-granular-activated-carbon-water) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-02*