This threaded strainer lid cover is a replacement part for pool pumps. The thread strainer cover is made of high-quality materials, durable and practical. This replacement pump lid is compatible with SPX3100D and several other models, including J13506, J18006, J13507, J18007, J18008, and J20008. The threaded strainer cover replacement measures 5.24 inches in diameter and is easy to install on the pump for C250CF, C500CF, C1100CF, and C1800CF. Designed as a precise replacement, this thread strainer cover provides a secure fit and reliable performance. Material: Plastic Color: As shown Package Contents: 1 x Pool sand pump filter cover 1 x Rubber ring Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the actual product. Measurement may vary by +/- 1-3 cm.