Reusable Mesh Filter - The pre-filter includes a washable fine mesh filter to protect your garden pump from fallen leaves and other debris that can reduce its efficiency. Filters Water Debris - Protects your pump and controller from litter sheets and other debris that can reduce its effectiveness. The pre-filter kit includes a washable fine-mesh filter and comes with 2 connectors for easy installation.< /p> Package Content: 1 * 20mm Pipeline Filter. "