For refrigerator water filters, Glacial Pure is one of the top manufacturers. We have more than 30 types of water filters, all of which have been tested and certified for lead free compliance by IAPMO to NSF/ANSI 42 & 53 (System) and are certified for Protection of Materials, Structural Integrity and System Performance. We have 6 production lines, and 15000 pcs is our daily output. We manufacture and sell more than 350,000 high quality water filters to the entire world every month. Our clients are 100% pleased with our brand, and we are proud of every single filter we make.