Feature:1. HIGH EFFICIENCY: Designed with 3 thick layers of pool and spa filters to wick away as much debris, dirt and particulates as possible, efficient and reliable.2. APPLICABLE MODEL: This replacement filter cartridge is compatible for TigerShark, for SharkVac and for AquaVac robotic pool and tub robots.3. EASY TO : The filter cartridge panel is reusable, can be ed after each use, it is recommended to replace the filter cartridge every 1‑2 months.4. DURABLE MATERIAL: Made of plastic frame and thick filter material, this filter cartridge is designed for heavy duty construction, has a long service life.5. 2PCS IN 1 SET: Including 2pcs pool er filter cartridges, can directly replace old or damaged filter cartridges, and reduce pool maintenance cost.How to Use:After taking out the product, you can directly replace the filter cartridge on the machineSpecification:Item Type: Pool er Filter CartridgeMaterial: PP, PET, Activated Carbon Package List:2 x Filter CartridgeNote:It is recommended to replace the filter cartridge every 1‑2 months (the most frequently used ones are replaced more frequently)