--- product_id: 37949332 title: "CuZn - Refillable Empty Water Filter Cartridge, 4.5\"D x 10\"H - WHITE, Compatible With 10\" Big Blue Type Filter Housings" brand: "cuzn" price: "18 zł" currency: PLN in_stock: true reviews_count: 6 url: https://www.desertcart.pl/products/37949332-cuzn-refillable-empty-water-filter-cartridge-4-5d-x-10h store_origin: PL region: Poland --- # CuZn - Refillable Empty Water Filter Cartridge, 4.5"D x 10"H - WHITE, Compatible With 10" Big Blue Type Filter Housings **Brand:** cuzn **Price:** 18 zł **Availability:** ✅ In Stock ## Quick Answers - **What is this?** CuZn - Refillable Empty Water Filter Cartridge, 4.5"D x 10"H - WHITE, Compatible With 10" Big Blue Type Filter Housings by cuzn - **How much does it cost?** 18 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/37949332-cuzn-refillable-empty-water-filter-cartridge-4-5d-x-10h) ## Best For - cuzn enthusiasts ## Why This Product - Trusted cuzn brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Manufactured by the most trusted brand in the industry, CuZn Water Filtration Systems (est. 1987). Theses cartridge are compliant with NSF 61 Standards for use in potable & non potable water filtration systems. Materials of Construction- End Caps: High Impact Polystyrene, Body: High Impact Polystyrene, Resin: Tairirex Polystyrene. ## Technical Specifications | Specification | Value | |---------------|-------| | Material | Polystyrene | | Product Dimensions | 4.5"D x 4.5"W x 10"H | | Item Weight | 1.15 Pounds | | External Testing Certification | NSF | | Product Benefits | Removes Impurities By Making Your Own Water Filters Using CuZn's Empty Refillable Water Filter Cartridges | | Brand | CuZn | | Unit Count | 1.0 Count | | Part Number | Empty Cartridge | | Item Weight | 1.15 pounds | | Item model number | Empty Cartridge | | Is Discontinued By Manufacturer | No | | Size | 4.5"D x 10"H | | Color | White Housing | | Item Package Quantity | 1 | | Batteries Included? | No | | Batteries Required? | No | ## Product Details - **Material:** Polystyrene - **Product Dimensions:** 4.5"D x 4.5"W x 10"H - **Item Weight:** 1.15 Pounds - **External Testing Certification:** NSF - **Product Benefits:** Removes Impurities By Making Your Own Water Filters Using CuZn's Empty Refillable Water Filter Cartridges ## Images ![CuZn - Refillable Empty Water Filter Cartridge, 4.5"D x 10"H - WHITE, Compatible With 10" Big Blue Type Filter Housings - Image 1](https://m.media-amazon.com/images/I/51pneMcheBL.jpg) ![CuZn - Refillable Empty Water Filter Cartridge, 4.5"D x 10"H - WHITE, Compatible With 10" Big Blue Type Filter Housings - Image 2](https://m.media-amazon.com/images/I/5118zgpVCxL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Refillable canisters do not pass water out the top. *by S***R on Reviewed in the United States on October 19, 2019* Edit: To make a long story short, if your municipal supply or plumbing has sediment and you don't pre-filter for it, refillable canisters will eventually clog. Not sure why the ones I received were already clogged.When my CuZn cartridges would not flow water, I tried a couple of other brands and they worked better. However, as it turns out, the CuZn cartridges have replaceable pads at the top and bottom. The other brands I use must be discarded after being clogged. They have some sort of spun filter fused to the cap that not only makes you have to buy a new one down the road, it also lowers the amount of media you can pack. I bag my media (some is reusable and I 3-stack), and that makes the other brands that much more of a packing problem.The CuZn filters have a plastic grid trapping a stainless steel mesh that sits over the pad at each end. You can remove the grid with a little effort and the mesh and pad are freed. I pulled those out and replaced the plastic grid. Best flow I have ever had. I am going to put the stainless steel mesh back as it was only the pad that was the problem and the mesh is coarse. Anyway, 5 stars for having the best product for most applications (despite having to modify for my application) and for their tenacious customer service.Original Review:The refillable canisters I received turned out to be watertight on the output. Drove me crazy troubleshooting plumbing, etc., changing media, reducing media, and so on. Finally decided to leave the canisters empty and get help, but no flow through the empty canisters! Took them out and tops are water tight. Never heard of such a thing. Have to remove the caps for water to come out the top or let water trickle out the bottom for 5 minutes.Bad batch of canisters?! ### ⭐⭐⭐⭐⭐ ... 4 months of use so far doesn't give a great review, but so far *by B***N on Reviewed in the United States on November 7, 2017* Almost 4 months of use so far doesn't give a great review, but so far, it's been perfect. I filled it with a 5 lbs bag of activated carbon. https://www.amazon.com/gp/product/B00KYYP2A0/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 It filled the container with almost all of the 5 lbs bag. This fits in a 20" big blue filter housing and comes with everything needed (except the media). Well constructed and goes together easily. I have read that activated carbon will get water "highways" over time, where water makes a channel in the carbon. I've removed the filter twice and given it a good shake/stir to collapse any highways to try and get the most life out of the carbon. Based on my water usage, I'll need to replace the carbon in at about 4 to 5 months. Carbon will also grow bacteria, so carbons life is limited. I use this filter behind a 5 micron string filter. I've tried the pleated filters and found the string filters work better for me. Best part about this filter is one can use any media needed for the water conditions. It may seem like a lot up front, but over time, this is the way to go. ### ⭐⭐⭐⭐⭐ The cartridge feels very sturdy and the top screw cap seems tight *by S***M on Reviewed in the United States on October 24, 2016* The cartridge feels very sturdy and the top screw cap seems tight. Another reviewer mentioned water bypass through there. I will apply Teflon tape there to make sure it is sealed properly. Also ordered KDF 55 from same seller. I called seller wanted to know what kind of carbon refill I should put in, CuZn sales is a very responsive and helpful person with tremendous knowledge. It is rare nowadays to have human response. We must have spent 60+mins in 2 telephone conversations. He took time to answer all my questions. He confirmed my area uses chloramine instead of chlorine. Suggested to use reticulated KDF 85 instead of KDF 55. He also sent me a report to backup recommendation. Also suggested what kind of catalytic carbon to use to treat chloramine. I definitely recommend this company. --- ## 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.pl/products/37949332-cuzn-refillable-empty-water-filter-cartridge-4-5d-x-10h](https://www.desertcart.pl/products/37949332-cuzn-refillable-empty-water-filter-cartridge-4-5d-x-10h) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-26*