[Microfiltration] The filter cartridges are designed to catch only large debris and allow fine debris to pass through to prevent the cartridges from clogging as quickly when the pool is under particularly heavy use. [Multi-Version Compatible Use]-Filter Perfect for Dolphin Pool Cleaning Robot: S50 Active 10, Part Number: 9991460-R1. Plastic frame, more stable and . It firmly supports the filter layer and prevents it from breaking while working. Same as model number 9991460-R1. If used correctly, ultra-fine filter ends can last 2 to 10 minutes. 3 years. Please rinse the filter every 4 weeks. 6 weeks for optimal performance Please note: Physical color difference or difference does not affect the use, please don't worry! Material: plastic Color: as shown Package includes: 1 x Ultra Filtration Basket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item to be slightly different from the original. The