AQUACREST Replacement DW80/90 Under Sink Water Filter, Compatible with Aqua-Pure AP-DW80/90, Kohler K-201-NA, Kohler K-202-NA (Pack of 2) Our high-quality filters offer clean and fresh water to you and your family. **Note: For cold water only! Its easy to install requiring no tools. For detailed instruction, please kindly refer to the Instruction Manual in the box. To enjoy fresh water, it's recommended you replace the filter every 6 months or 625 gallons, whichever comes first will vary based on water conditions. Offers reasonable price without compromising quality. Interchangeable with Aqua-Pure AP-DW80/90; KOHLER K-202-NA Aquifer Premium; KOHLER K-201-NA Aquifer High-Flow. **Note: AquaCrest is an independent replacement brand. This filter is not an original filter.