--- product_id: 19716470 title: "Brondell RF-40 Membrane Water Filter Replacement for Circle Under Sink Reverse Osmosis Filtration System, Lasts 24 Months" brand: "brondell" price: "Esc 31817" currency: CVE in_stock: true category: "Brondell" url: https://capeverde.desertcart.com/products/19716470-brondell-rf-40-membrane-water-filter-replacement-for-circle-under store_origin: CV region: Cape Verde --- # 24-month long-lasting filter life WQA certified 64-contaminant reduction Twist & seal DIY installation Brondell RF-40 Membrane Water Filter Replacement for Circle Under Sink Reverse Osmosis Filtration System, Lasts 24 Months **Brand:** brondell **Price:** Esc 31817 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your hydration game with every sip—because clean water is the new luxury. ## Quick Answers - **What is this?** Brondell RF-40 Membrane Water Filter Replacement for Circle Under Sink Reverse Osmosis Filtration System, Lasts 24 Months by brondell - **How much does it cost?** Esc 31817 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [capeverde.desertcart.com](https://capeverde.desertcart.com/products/19716470-brondell-rf-40-membrane-water-filter-replacement-for-circle-under) ## Best For - brondell enthusiasts ## Why This Product - Trusted brondell brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Filter Swap:** Quick twist-and-seal design with built-in change indicator and replacement battery keeps maintenance hassle-free and timely. - • **Taste the Difference Daily:** Multi-stage filtration delivers fresher, better-tasting water straight from your tap—because your health deserves premium quality. - • **Pure Water, Zero Compromise:** Advanced reverse osmosis membrane eliminates heavy metals, fluoride, arsenic, and industrial chemicals for crystal-clear hydration. - • **Certified Clean You Can Trust:** WQA and NSF/ANSI certified to reduce 64 contaminants, ensuring every drop meets rigorous safety standards. - • **Sustainability Meets Sophistication:** Eco-conscious design supports your green lifestyle by protecting essential water resources without sacrificing performance. ## Overview The Brondell RF-40 is a premium reverse osmosis membrane replacement filter designed for the Circle under-sink filtration system. Certified by WQA and NSF/ANSI standards, it effectively reduces 64 contaminants including heavy metals and industrial chemicals. With a 24-month lifespan and a user-friendly twist-and-seal installation featuring a built-in change indicator, it ensures sustained access to fresh, clean, and great-tasting water while supporting sustainable living. ## Description desertcart.com: Brondell RF-40 Membrane Water Filter Replacement for Circle Under Sink Reverse Osmosis Filtration System, Lasts 24 Months : Tools & Home Improvement ## Features - CRYSTAL CLEAR BENEFITS: The reverse osmosis membrane filter separates clean water molecules from contaminants and reduces heavy metals, cysts, fluoride, arsenic, industrial chemicals, and more - WATER QUALITY ASSOCIATION CERTIFICATION: Holds WQA certification for reduction of 64 contaminants when used with the Circle Reverse Osmosis Under Sink Water Filtration System (certified under NSF/ANSI standards 42, 53, 58, and 372) - SIMPLE DIY INSTALLATION: The replacement filter can be installed in just a few minutes with a quick and easy twist and seal installation; The change indicator lets you know when a new filter is needed; Includes filter indicator replacement battery - We design hygiene products that help protect our planet’s essential resources. From water-saving showers and air purifiers to bidets that help reduce toilet paper and energy use, we’re helping you live more sustainably and it feels better already. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B012UPEAQM | | Best Sellers Rank | #18,908 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #122 in Replacement Under-Sink Water Filters | | Brand | Brondell | | Brand Name | Brondell | | Compatible Water Purifier Models | Brondell Circle RC | | Customer Reviews | 4.5 out of 5 stars 797 Reviews | | External Testing Certification | WQA | | Item Dimensions D x W x H | 2.75"D x 2.75"W x 11.25"H | | Item Type Name | Water Filter Replacement for Circle Under Sink Reverse Osmosis Filtration System, Lasts 6 Months | | Item Weight | 1.2 pounds | | Manufacture Year | 2021 | | Manufacturer | Brondell | | Manufacturer Part Number | RF-40 | | Material | Plastic | | Material Type | Plastic | | Model Number | RF-40 | | Number of Items | 1 | | Product Benefits | Removes Pollutants | | Product Dimensions | 2.75"D x 2.75"W x 11.25"H | | UPC | 819911013616 | | Unit Count | 1 Count | ## Product Details - **External Testing Certification:** WQA - **Item Weight:** 1.2 pounds - **Material:** Plastic - **Product Benefits:** Removes Pollutants - **Product Dimensions:** 2.75"D x 2.75"W x 11.25"H ## Images ![Brondell RF-40 Membrane Water Filter Replacement for Circle Under Sink Reverse Osmosis Filtration System, Lasts 24 Months - Image 1](https://m.media-amazon.com/images/I/81EXL0Tja9L.jpg) ![Brondell RF-40 Membrane Water Filter Replacement for Circle Under Sink Reverse Osmosis Filtration System, Lasts 24 Months - Image 2](https://m.media-amazon.com/images/I/81AO2O-yQ9L.jpg) ![Brondell RF-40 Membrane Water Filter Replacement for Circle Under Sink Reverse Osmosis Filtration System, Lasts 24 Months - Image 3](https://m.media-amazon.com/images/I/61qXva+ZOrL.jpg) ![Brondell RF-40 Membrane Water Filter Replacement for Circle Under Sink Reverse Osmosis Filtration System, Lasts 24 Months - Image 4](https://m.media-amazon.com/images/I/61acP7bxZPL.jpg) ![Brondell RF-40 Membrane Water Filter Replacement for Circle Under Sink Reverse Osmosis Filtration System, Lasts 24 Months - Image 5](https://m.media-amazon.com/images/I/81Pvqk20eaL.jpg) --- ## 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://capeverde.desertcart.com/products/19716470-brondell-rf-40-membrane-water-filter-replacement-for-circle-under](https://capeverde.desertcart.com/products/19716470-brondell-rf-40-membrane-water-filter-replacement-for-circle-under) --- *Product available on Desertcart Cape Verde* *Store origin: CV* *Last updated: 2026-11-01*