--- product_id: 39918623 title: "Granular Activated Carbon" brand: "kolar labs" price: "โ‚ฌ 37.03" currency: EUR in_stock: true reviews_count: 13 category: "Kolar Labs" url: https://www.desertcart.hr/products/39918623-granular-activated-carbon store_origin: HR region: Croatia --- # Fast-acting clarity overnight Universal filter compatibility Lab-grade granular purity Granular Activated Carbon **Brand:** kolar labs **Price:** โ‚ฌ 37.03 **Availability:** โœ… In Stock ## Summary > ๐Ÿ’ง Crystal Clear Aquariums, Fast & Flawless! ## Quick Answers - **What is this?** Granular Activated Carbon by kolar labs - **How much does it cost?** โ‚ฌ 37.03 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/39918623-granular-activated-carbon) ## Best For - kolar labs enthusiasts ## Why This Product - Trusted kolar labs brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - โ€ข **Versatile Filter Fit:** Seamlessly works in reactors, canisters, intank & hanging filters - โ€ข **Effortless Maintenance:** Simple dosing & quick rinse routine keeps your aquarium pristine - โ€ข **Optimized Granule Design:** Large granules ensure maximum flow & filtration efficiency ๐Ÿ”„ - โ€ข **Premium Lab-Grade Quality:** Crafted to Food Chemicals Codex standards for unmatched purity ๐Ÿงช - โ€ข **Overnight Water Transformation:** Eliminates cloudiness, odors & discoloration by morning โšก ## Overview Kolar Labs Crystal Cal Activated Carbon is a 0.7 lb jar of premium, FCC-certified granular activated charcoal designed specifically for aquarium use. Its optimized pore structure and large granules deliver rapid removal of water cloudiness, odors, and discoloration overnight. Compatible with all filter types, it ensures efficient filtration and easy maintenance, making it the trusted choice for serious aquarium enthusiasts aiming for crystal-clear aquatic environments. ## Description desertcart.com : Kolar Labs Crystal Cal Activated Carbon โ€“ Large Jar, Activated Charcoal for Aquariums and Fish Tanks : Pet Supplies Review: Did the job and great bulk value - Bombed my tank for worms. The value on this jar was great. 3 lbs. The worm treatment wanted me to use 1 lb per 50 gallons. Soni sued 2 lbs and have another lb or so for emergency. Make sure to give it a good rinse. As you would for any activated carbon. Review: Love Kolar Labs! - My husband is in the salt water hobby, and uses activated carbon for his tank. He was purchasing it from another company that was double the price for the same amount. When we saw that Kolar Labs sold it, he was so excited to try their product since he has been habit with their other products! It is working so far, the size of the carbon is exactly what we were needing, and it has lasted quite a bit now in his system. Definitely will purchase again! ## Features - CONTAINS 0.7 lbs (320 g) - FAST RESULTS: Works quickly to eliminate cloudy water, colors and odors overnight โ€“ guaranteed - TRUSTED SOURCE: Made according to Food Chemicals Codex (FCC) standards; Bringing you the highest quality, bulk and packaged Activated Carbon - HIGH PERFORMANCE: Laboratory grade granular activated carbon; Specifically made with optimum pore structure for aquarium use - WORKS IN ALL FILTERS: Large granules allow great flow in any filter media bag, cartridge or filter for efficient filtration; Use in reactors, canister filters, intank filters or hanging filters - EASY TO USE: Use 1 cup per 50 gallons (1 tablespoon for every 3 gallons); Change every 2-4 weeks; Short rinse before use ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06W2PJ1ZJ | | Best Sellers Rank | #30,004 in Pet Supplies ( See Top 100 in Pet Supplies ) #297 in Aquarium Filter Accessories | | Brand | Kolar Labs | | Brand Name | Kolar Labs | | Customer Reviews | 4.6 out of 5 stars 1,417 Reviews | | Global Trade Identification Number | 00851794007214 | | Item Form | Granules | | Item Weight | 0.75 Pounds | | Liquid Volume | 50 Gallons | | Manufacturer | Calgon Carbon | | Manufacturer Part Number | CC 320g | | Model Number | CC 320g | | Target Species | Fish | | UPC | 851794007214 | | Unit Count | 320.00 Grams | ## Product Details - **Brand:** Kolar Labs - **Item Form:** Granules - **Item Weight:** 0.75 Pounds - **Liquid Volume:** 50 Gallons - **Manufacturer:** Calgon Carbon ## Images ![Granular Activated Carbon - Image 1](https://m.media-amazon.com/images/I/71oOR5N7mZL.jpg) ## Questions & Answers **Q: Is this the same type of charcoal used in the bags to remove odors around the home and in vehicles?** A: Yes, this is a true liquid phase carbon made specifically for water purification, but it will work well for air handling as well, to remove odors around the home, litter box etc. One thing you will notice is that it is very clean, low dust, which you will really like when handling it. Thanks! **Q: can this be used in cat litter boxes?** A: This product will be perfectly safe and effective for use in cat litter boxes. Thanks! **Q: What is the carbon made of? Coal, hardwood, or coconut husk?** A: This is called a sub-bituminous Granular Activated Carbon. It is a very clean, coal based carbon, that is derived from a special source, not in China, with an excellent pore structure for aquarium use. **Q: Can I use this product for water filter system for my house?** A: Sure, that is how I use it. Just be sure to rinse out the fine particles before you install. ## Customer Reviews ### โญโญโญโญโญ Did the job and great bulk value *by D***K on January 4, 2026* Bombed my tank for worms. The value on this jar was great. 3 lbs. The worm treatment wanted me to use 1 lb per 50 gallons. Soni sued 2 lbs and have another lb or so for emergency. Make sure to give it a good rinse. As you would for any activated carbon. ### โญโญโญโญโญ Love Kolar Labs! *by M***N on May 20, 2026* My husband is in the salt water hobby, and uses activated carbon for his tank. He was purchasing it from another company that was double the price for the same amount. When we saw that Kolar Labs sold it, he was so excited to try their product since he has been habit with their other products! It is working so far, the size of the carbon is exactly what we were needing, and it has lasted quite a bit now in his system. Definitely will purchase again! ### โญโญโญโญโญ Good value *by D***M on May 15, 2026* Good product used to filter water after medication is used then I replace with seachem purigen ## Frequently Bought Together - Kolar Labs Crystal Cal Activated Carbon โ€“ Large Jar, Activated Charcoal for Aquariums and Fish Tanks - DEPEPE 10pcs Aquarium Filter Media Bags with Zipper for Activated Carbon, Biospheres, Ceramic Rings - Marineland White Diamond 50 Ounces, Removes Toxic Ammonia, Aquarium Filter Media --- ## Why Shop on Desertcart? - ๐Ÿ›’ **Trusted by 1.3+ Million Shoppers** โ€” Serving international shoppers since 2016 - ๐ŸŒ **Shop Globally** โ€” Access 737+ million products across 21 categories - ๐Ÿ’ฐ **No Hidden Fees** โ€” All customs, duties, and taxes included in the price - ๐Ÿ”„ **15-Day Free Returns** โ€” Hassle-free returns (30 days for PRO members) - ๐Ÿ”’ **Secure Payments** โ€” Trusted payment options with buyer protection - โญ **TrustPilot Rated 4.5/5** โ€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/39918623-granular-activated-carbon](https://www.desertcart.hr/products/39918623-granular-activated-carbon) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-10*