The Whirlpool WP2260518B Water Filter Cap helps secure and properly position the water filter in your refrigerator. Designed as a replacement component, this water filter cap fits onto the filter housing and helps keep the filter firmly in place during normal operation. It supports a stable connection within the filtration system, allowing water to pass through the filter as intended.... https://www.partsmelange.ca/whirlpool-wp2260518b-water-filter-cap-for-refrigerator