About This

• 【Compatible Models】 Purewell upgraded composite filter is a direct drop-in replacement for ProOne Big+/Big II Series and Berkey BB9-2 black filters, as well as Berkey Travel, Big, Royal, Imperial, Light and Crown Series. It is also fully compatible with Purewell Gravity-fed Water Filter System, featuring a precision-engineered tight seal for secure fit and reliable installation. Note: This filter is not affiliated with, sourced by or sponsored by Berkey or ProOne; Purewell is an independent professional water purification brand.
• 【Advanced 4-Stage Filtration】 NSF/ANSI 42 certified, our premium composite filter features a high-performance 4-stage filtration structure, integrating a 0.01μm hollow fiber ultrafiltration membrane, professional fluoride removal media, silver ion barrier, and high-density activated carbon block. This multi-layer design removes up to 99.9% of chlorine, rust, sediment, organic compounds and heavy metals, plus 90% of fluoride. Compliant with NSF/ANSI 372 lead-free standards, it ensures reliable filtration for daily family drinking.
• 【Innovative Fluoride Removal Technology】 This upgraded composite filter combines high-quality activated carbon and fluoride removal media (not harmful alumina). It effectively removes up to 90% of fluoride while ensuring safe use. Removes 99.99% of contaminants, delivering safer drinking water.
• 【Long-Lasting Filtration】 Each single filter delivers up to 3,000 gallons of fresh, purified water, and a pair provides up to 6,000 gallons total, giving your household reliable, long-lasting performance. For optimal filtration, we recommend replacing the filter at the 3,000-gallon mark per single unit, though frequency may vary with your actual water quality. Note: TDS levels do not fully indicate water quality, and our filters are not designed to lower TDS levels.
• 【Eco-Friendly & Cost-Effective Hydration Solution】 Each Purewell replacement filter helps eliminate thousands of single-use plastic bottles, reducing plastic waste while significantly cutting long-term bottled water expenses. This sustainable design combines high-performance purification with eco-friendly living, supporting a greener low-waste lifestyle and delivering consistent, high-quality drinking water for the whole family.

Overview

• Material : Acrylonitrile Butadiene Styrene (ABS), Activated Carbon, Silver Ion, Hollow Fiber UF Membrane, Fluoride Reduction Material, Polyester, Polypropylene (PP) Acrylonitrile Butadiene Styrene (ABS), Activated Carbon, Silver Ion, Hollow Fiber UF Membrane, Fluoride Reduction Material, Po… See more
• Product Dimensions : 3"D x 6"W x 9"H
• Item Weight : 0.67 kg
• External Testing Certification : NSF
• Product Benefits : Reduce Chlorine and Fluoride