--- product_id: 33719229 title: "4009DC Cellulose Filter Media D.E. Alternative for Swimming Pools, 9-Ounce, Black" brand: "fiber clear" price: "121.13 DT" currency: TND in_stock: true reviews_count: 8 category: "Fiber Clear" url: https://www.desertcart.tn/products/33719229-4009dc-cellulose-filter-media-d-e-alternative-for-swimming-pools store_origin: TN region: Tunisia --- # Filters down to 2 microns ultra-fine Bio-degradable & non-toxic 1 lb equals 8 lbs of traditional D.E. 4009DC Cellulose Filter Media D.E. Alternative for Swimming Pools, 9-Ounce, Black **Brand:** fiber clear **Price:** 121.13 DT **Availability:** βœ… In Stock ## Summary > πŸ’§ Elevate your pool game with eco-smart clarity! ## Quick Answers - **What is this?** 4009DC Cellulose Filter Media D.E. Alternative for Swimming Pools, 9-Ounce, Black by fiber clear - **How much does it cost?** 121.13 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/33719229-4009dc-cellulose-filter-media-d-e-alternative-for-swimming-pools) ## Best For - fiber clear enthusiasts ## Why This Product - Trusted fiber clear brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Eco-Friendly Pool Care:** Biodegradable and non-toxic formula keeps your pool and planet safe. - β€’ **Versatile Compatibility:** Works seamlessly with cartridge, DE, and sand filters for sparkling results. - β€’ **Chemical Use Cut in Half:** Reduces need for clarifiers, metal removers, and chlorine by up to 50%. - β€’ **Efficient D.E. Replacement:** One pound replaces eight pounds of traditional Diatomaceous Earth. - β€’ **Ultra-Fine Filtration Power:** Captures particles as small as 2 microns for crystal-clear water. ## Overview Fiber Clear 4009DC is a 9-ounce, black cellulose filter media designed as a safe, biodegradable alternative to Diatomaceous Earth. It filters down to 2 microns, delivering ultra-clear pool water while reducing chemical use and environmental impact. Compatible with cartridge, DE, and sand filters, it offers efficient filtration with less maintenance and a smaller ecological footprint. ## Description Fiber Clear is a safe and effective alternative to Diatomaceous Earth. Fiber Clear will filter down to 2 microns. This ultra-fine filtration will give you truly clearer swimming pool water. Fiber Clear is bio-degradable, non-toxic and environmentally friendly. 1 pound of Fiber Clear equals 8 pounds of D.E. Review: Keeps the pool really clean, with a cartridge, DE, or sand filter - I've been using this for several years now, first as an additive for a cartridge filter, and for the last three years as a full replacement for DE in a DE filter. A cup in the cartridge filter improved the effectiveness of the filter. I no longer needed to use clarifier or metal remover to get the water really clear, and needed to run the filter much less. In the DE filter, it leaves the water crystal clear, and I can run the filter only a few hours a day. The only downsides are that in a cartridge filter, you need to clean the cartridge more often, and in the DE filter, some of the media will blow through the filter and back into the pool in the first few hours after backwashing/recharging. If you have a really powerful filter pump, this could be a problem. But it's worth the extra vacuuming the day after recharging, as the pool is much cleaner. I've also found that I use a whole lot less chemicals since switching to Fiber Clear. I no longer need clarifier, metal remover, or algaecide, and the pool requires about half the chlorine in a season. Do not mix DE and Fiber Clear, and clean the filter thoroughly before switching to it, as the mixture will clog the filter almost immediately. UPDATE: My original review is now 6 years old and I still use this stuff exclusively. I found that by using an extra cup or 2 with each charge, it’s less likely to blow through. I also tried another similar brand once when this was unavailable, and had a big problem with it blowing through. I won’t do that again. Still a big fan. ANOTHER UPDATE: My daughter is now using this with her sand filter with similarly excellent results. She adds one measuring cup after each backwash. When she first started using it the filter seemed to plug up almost hourly and it would start blowing back into the pool... but that was just because the water was that dirty. Sand filters don't remove microscopic dirt as well as cartridge or DE filters without help. After several backwashes, her water was sparkling clean and the filter isn't plugging up like it was. And she only needs to run it a few hours a day instead of the 8 hours+ it took before. This stuff makes a sand filter clean more like a DE filter. (I would never recommend a sand filter, but that's what was provided with her pool.) Review: Great in our salt water pool - Works wonderfully with our pool filter. ## Features - Safe & Effective D.E. Alternative - Filters down to 2 microns - Environmentally Friendly - Bio-Degradable & Non-Toxic - Keeps your pool sparkling clear ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0017T0J0E | | Best Sellers Rank | #71,316 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #82 in Pool DE Filters | | Customer Reviews | 4.4 4.4 out of 5 stars (442) | | Is Discontinued By Manufacturer | No | | Item Weight | 9.6 ounces | | Item model number | FCR009B | | Manufacturer | Robelle Industries | | Product Dimensions | 7 x 4 x 10 inches | ## Images ![4009DC Cellulose Filter Media D.E. Alternative for Swimming Pools, 9-Ounce, Black - Image 1](https://m.media-amazon.com/images/I/71HJw+ZgD5L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Keeps the pool really clean, with a cartridge, DE, or sand filter *by D***R on June 24, 2018* I've been using this for several years now, first as an additive for a cartridge filter, and for the last three years as a full replacement for DE in a DE filter. A cup in the cartridge filter improved the effectiveness of the filter. I no longer needed to use clarifier or metal remover to get the water really clear, and needed to run the filter much less. In the DE filter, it leaves the water crystal clear, and I can run the filter only a few hours a day. The only downsides are that in a cartridge filter, you need to clean the cartridge more often, and in the DE filter, some of the media will blow through the filter and back into the pool in the first few hours after backwashing/recharging. If you have a really powerful filter pump, this could be a problem. But it's worth the extra vacuuming the day after recharging, as the pool is much cleaner. I've also found that I use a whole lot less chemicals since switching to Fiber Clear. I no longer need clarifier, metal remover, or algaecide, and the pool requires about half the chlorine in a season. Do not mix DE and Fiber Clear, and clean the filter thoroughly before switching to it, as the mixture will clog the filter almost immediately. UPDATE: My original review is now 6 years old and I still use this stuff exclusively. I found that by using an extra cup or 2 with each charge, it’s less likely to blow through. I also tried another similar brand once when this was unavailable, and had a big problem with it blowing through. I won’t do that again. Still a big fan. ANOTHER UPDATE: My daughter is now using this with her sand filter with similarly excellent results. She adds one measuring cup after each backwash. When she first started using it the filter seemed to plug up almost hourly and it would start blowing back into the pool... but that was just because the water was that dirty. Sand filters don't remove microscopic dirt as well as cartridge or DE filters without help. After several backwashes, her water was sparkling clean and the filter isn't plugging up like it was. And she only needs to run it a few hours a day instead of the 8 hours+ it took before. This stuff makes a sand filter clean more like a DE filter. (I would never recommend a sand filter, but that's what was provided with her pool.) ### ⭐⭐⭐⭐⭐ Great in our salt water pool *by S***N on October 14, 2025* Works wonderfully with our pool filter. ### ⭐⭐⭐⭐⭐ It works *by S***1 on August 23, 2025* If you struggle with filter cartridge blow-by, this is your ticket to happiness. My filters would allow too much fine sediment to pass through and I'd find a thin film of it on the pool floor within hours of vacuuming. This helps fill in those minute pores and helps keep the water clearer and with much less sediment. You may experience higher filter pressure. If you do, try using less than suggested amounts. My 48gal filter is happy with 7 cups. And since I use a suction driven vacuum, it's critical to keep the pressure down for the maximum suction power. Will not matter if you have an independent vaccum system. --- ## 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.tn/products/33719229-4009dc-cellulose-filter-media-d-e-alternative-for-swimming-pools](https://www.desertcart.tn/products/33719229-4009dc-cellulose-filter-media-d-e-alternative-for-swimming-pools) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-07*