Brondell Rf-40 Membrane Water Filter Replacement For Circle, Lasts 6 Months The Circle?s reverse osmosis membrane filter reduces contaminants such as heavy metals, cysts, fluoride, arsenic, industrial chemicals, and more. Designed for use with the Circle Reverse Osmosis Under Sink Water Filtration System, which holds Gold Seal Certification by the Water Quality Association (WQA) for reduction of 64 contaminants. Product 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. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!