Specifically designed for a series of Hayward pool robot vacuum models to reduce the time, energy and cost of required outdoor pool maintenance.This is a great pool accessoryPool cartridge filter This filter is specially designed for TigerShark, SharkVac and AquaVac robots that clean swimming pools and bathtubs .The filter cartridge is designed to filter more particles to improve the filtration of the pool.The robot cleaner filter pool cover is made of a plastic frame and thick filter material that can withstand heavy and frequent use, as well as large amounts of dirt and debris.We designed a 3-layer thick pool and spa vacuum filter, which can absorb as much debris and dirt in your pool as possible.Replace Part No. 827261 RCX70101 RCX70101PAK2< /p>Compatibility for Tiger Shark RC9990GR RC36000QC RC9950RC9952 RC9742 RC4702 W3RC9740CUB Sharkvac RC9740Compatible with Hayward Tiger Shark Pool VacuumRCX70101 Filter Cartridge Refill Kit for HaywardRobotic AquaVaC TigerShark SharkVac Maytronics Vacuum CleanerPackage Includes: 2x filterNote: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be some color difference, the actual object received shall prevail.