--- product_id: 142628826 title: "POOLPURE PRB25-IN Hot Tub Filter Replace Unicel C-4326, 3005845, 1Pack" brand: "poolpure" price: "23773 Ft" currency: HUF in_stock: true reviews_count: 13 url: https://www.desertcart.hu/products/142628826-poolpure-prb25-in-hot-tub-filter-replace-unicel-c-4326 store_origin: HU region: Hungary --- # 13.3-inch length for perfect fit 25 sq.ft trilobal filtration area NSF/ANSI 50 certified safe materials POOLPURE PRB25-IN Hot Tub Filter Replace Unicel C-4326, 3005845, 1Pack **Brand:** poolpure **Price:** 23773 Ft **Availability:** ✅ In Stock ## Summary > 💧 Dive into crystal clarity with PoolPure – where performance meets perfection! ## Quick Answers - **What is this?** POOLPURE PRB25-IN Hot Tub Filter Replace Unicel C-4326, 3005845, 1Pack by poolpure - **How much does it cost?** 23773 Ft with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/142628826-poolpure-prb25-in-hot-tub-filter-replace-unicel-c-4326) ## Best For - poolpure enthusiasts ## Why This Product - Trusted poolpure brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Heavy-duty polyester and reinforced core extend filter life by 30%, saving you money. - • **Trusted by Champions:** Used by Olympic athletes and media-tested for peak performance in demanding aquatic environments. - • **Effortless Maintenance:** Patented dirt-locking tech makes rinsing quick and thorough—less hassle, more swim time. - • **Elite Filtration Power:** Trilobal fabric triples dirt adsorption for crystal-clear water all day. - • **Ultra-Fine 50-Micron Filter:** Captures 99% of fine particles like hair, dust, and leaves to keep your spa pristine. ## Overview The POOLPURE PRB25-IN Hot Tub Filter offers a 13.3-inch length and 25 sq.ft trilobal filtration fabric that delivers superior dirt capture and water clarity. Certified NSF/ANSI 50 for safety, it features patented dirt-locking technology for easy cleaning and a durable design that lasts 30% longer than standard filters. Trusted by Olympic athletes and backed by industry standards, this filter ensures your pool or spa stays sparkling clean with less maintenance. ## Features - 🍀Specifications: Length: 13 5/16”; Outside Diameter: 5”; Top Hole: 2 1/8”; Bottom Hole: 2 1/8”; Filtration Area: 25 Sq.ft; Filter Material: Trilobal Filtration Fabric. - 🍀Compatible Models: PLFPRB25-IN Pool Filter is compatible with PRB25-IN, Unicel C-4326, Filbur FC-2375, FC-2370, SD-00196, 303909, M-4326, 8172500, R173429. ★NOTE: This is a compatible replacement. Original manufacturers' names and part numbers are for reference only. POOLPURE stands as an independent brand. - 🏊Proud Partner of Florida Gators Swimming & Diving: PoolPure officially partners with the Florida Gators to support elite-level aquatic training. This collaboration reflects our shared focus on high-performance water quality, reliability, and consistency in demanding competitive environments. - 📺Proven by Athletes & Media Tested in real training environments and featuring Olympic swimmer Rhyan White, our filters deliver reliable performance where it matters most—while recognition from NBC Local highlights our commitment to consistent filtration and superior water quality. - 🍀NSF/ANSI 50 Certified Safety: PoolPure pool and spa filters are tested and certified by IAPMO against NSF/ANSI 50 standards for material safety. All components are proven safe for long-term water exposure, ensuring no harmful substances are released. Trusted by over 5 million pool owners, PoolPure delivers cleaner, safer pool and spa water for your family. - 🍀Trilobal Filtration Fabric Design: The innovative trilobal fiber structure provides three times the adsorption surface area compared to conventional filter fabrics. It captures more dirt and sediment while maintaining consistent water clarity, even under frequent use—so you can enjoy crystal-clear water all day long. - 🍀Patented Dirt-Locking Technology: Our exclusive dirt-locking structure efficiently captures debris and makes cleaning effortless. During rinsing, trapped dirt is released easily and thoroughly. The filter is simple to rinse, reusable, and significantly reduces both maintenance time and costs. - 🍀50-Micron Fine Filtration: Upgraded with a 50-micron high-efficiency filtration layer, it effectively removes up to 99% of fine particles such as hair, leaves, dust, and sand. It keeps pool water sparkling clear for longer, reducing the need for frequent water changes and chemical use—saving you both time and money. - 🍀Durable Heavy-Duty Construction: Made with 4 oz. thickened polyester filter fabric, reinforced ABS end caps, and a strengthened integrated core, this filter lasts over 30% longer than standard cartridges. It reduces replacement frequency and long-term maintenance costs, delivering greater value over time. - 🏅PHTA Member – Industry-Trusted Performance: As a proud member of the Pool & Hot Tub Alliance, PoolPure follows industry-recognized filtration standards to deliver superior performance, longer lifespan, and consistently crystal-clear water. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07MTBTZSV | | Best Sellers Rank | #11,441 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #31 in Pool Filter Cartridges | | Customer Reviews | 4.7 4.7 out of 5 stars (1,478) 4.7 out of 5 stars | | Item Model Number | PLFPRB25-IN | | Item Weight | 1.3 pounds | | Manufacturer | POOLPURE | | Product Dimensions | 5 x 5 x 13.4 inches | ## Images ![POOLPURE PRB25-IN Hot Tub Filter Replace Unicel C-4326, 3005845, 1Pack - Image 1](https://m.media-amazon.com/images/I/71w1lxgOdWL.jpg) ![POOLPURE PRB25-IN Hot Tub Filter Replace Unicel C-4326, 3005845, 1Pack - Image 2](https://m.media-amazon.com/images/I/71CmnzZCjlL.jpg) ![POOLPURE PRB25-IN Hot Tub Filter Replace Unicel C-4326, 3005845, 1Pack - Image 3](https://m.media-amazon.com/images/I/71oFwZVKk+L.jpg) ![POOLPURE PRB25-IN Hot Tub Filter Replace Unicel C-4326, 3005845, 1Pack - Image 4](https://m.media-amazon.com/images/I/71G6dACjSPL.jpg) ![POOLPURE PRB25-IN Hot Tub Filter Replace Unicel C-4326, 3005845, 1Pack - Image 5](https://m.media-amazon.com/images/I/712x62pqdPL.jpg) ## Available Options This product comes in different **Material Type** options. ## Questions & Answers **Q: Are these filters washable?** A: Hello, Yes they are washable. We suggest to rinse your hot tub filters with clean water every week, this will help remove debris and protect your filter material. under regular washings, hot tub filters will work more efficiently and last longer. **Q: This is the same dimension as my oem filter, but why my oem filter listed at 50 sq.ft, while this filter is listed at 25 sq.ft?** A: Hello edward m, PLFPRB50-IN is 50 sq.ft. , while PLFPRB25-IN is 25 sq.ft. Both filters are in the same size. For PLFPRB50-IN, please refer to this link: https://www.amazon.com/dp/B07MTDB8KB, thank you! **Q: Is this replacement filter compatible with rainbow dynamic rtl-rcf 25qf?** A: Yes, PLFPRB25-IN will replace Rainbow Dynamic 25. To make sure it fits your spa, we suggest to measure your old filter then compare with the specification. A slightly variance is acceptable. The filter size: Width: 5" Height: 13 5/16" Top: Open 2 1/8" Bottom: Open 2 1/8" Sq Ft: 25 sq ft **Q: will this work on a sundance optima 850?** A: Dear customer, Thank you for your question, The filter you asked DOES NOT fit sundance optima 850. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great filter *by on Reviewed in the United States August 20, 2026* Great quality and value for money. ### ⭐⭐⭐⭐⭐ HIGH VALUE TO PERFORMANCE AND DURABILITY RATIO. *by on Reviewed in the United States July 8, 2025* Hard to beat the value to performance ratio of this filter. I've used this particular filter on multiple bi-annual service and cleaning of our hot tub. The filter fits perfect and does it's job. ### ⭐⭐⭐⭐⭐ What my hot tub needed *by on Reviewed in the United States February 11, 2024* I was trying to clean my hot tub's filter so I could reuse it, but kept having problems with foam and smelly/dirty water no matter what I did. Finally gave up attempting to treat the water and decided to try replacing the filter. Got this one, and BINGO! Not only did the water stop foaming but it also stopped smelling...it essentially got me to the point where water treatments worked like they should. Another benefit, this filter is really easy to rinse off - unlike the original one which stayed brown no matter how hard I sprayed it down, the dirt seems to rinse off on this one. Granted, it may be because it has fewer pleats - but I don't care, it does the job I bought it to do. Nuf said. Will buy again in 6 months. ## Frequently Bought Together - POOLPURE PLFPRB25-IN Hot Tub Filter Replace Unicel C-4326, Guardian 413-106, Filbur FC-2375, FC-2370, 3005845, 17-2327, 100586, 33521, 25392, 817-2500, 5X13 Drop in Spa Filter 1 Pack - FROG @Ease Replacement SmartChlor Cartridge for use with Hot Tub FROG @Ease Floating System - Hot Tub Sanitizer System Supports Less Chlorine Use - 3 Pack - FROG @Ease Floating System for Hot Tubs - Quick & Easy Self-Regulating Hot Tub Sanitizer - Hot Tub Maintenance System with Sanitizing Minerals & SmartChlor Technology --- ## 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.hu/products/142628826-poolpure-prb25-in-hot-tub-filter-replace-unicel-c-4326](https://www.desertcart.hu/products/142628826-poolpure-prb25-in-hot-tub-filter-replace-unicel-c-4326) --- *Product available on Desertcart Hungary* *Store origin: HU* *Last updated: 2026-09-10*