Compatibility - RCX70101PAK2 / RCX70101; exactly compatible with Hayward Robotic Pool Cleaners including TigerShark, TigerShark QC, TigerShark Plus, TigerShark2, TigerShark2 Plus Series, SharkVac XL, SharkVac, AquaVac 500 Series Material and durability - ABS plastic frame for sturdiness and structural stability; provides maximum hydraulic efficiency - Premium ultra-fine filters by czobloik that last 2-3 years - Rinse the filter every 4-6 weeks for optimal performance Filtration performance - Diamond-shaped grid woven with reinforced PET fiber material for an ultra-fine, pleated design - Delivers high filtration efficiency to remove dirt and debris from your pool - Helps keep your pool in its best condition Function and benefits - Trap Everything - pleated ultra-fine filter removes small particles more efficiently than non-pleated filters - Keeps the pool floor crystal clear Use scenarios - Routine weekly cleaning for residential pools using TigerShark or SharkVac cleaners - After storms or windy days when the pool collects leaves and fine debris - In pools with pollen or fine dust to maintain crystal-clear water and protect filter life