9991432-R4 Pack of 4 replacement pool filters for Dolphin M400, M500, Nautilus CC Plus robotic pool cleaners, ultra-fine filter cartridges for swimming pools

General Description The 9991432-R4 replacement pool filters are designed for the Dolphin M400, M500, and Nautilus CC Plus robotic pool cleaners. These ultra-fine cartridge filters provide efficient filtration, removing dirt, debris, leaves, hair, dust, and diatomaceous earth, ensuring a clean and pristine pool. Technical Specifications Part Number: 9991432 R4 Item Type: Pool Cleaner Filter Material: ABS Weight: Approx. 355 g / 12.5 oz Lifespan: 2-3 years Usage For optimal performance, it is recommended to rinse the filter every 4-6 weeks.