Swimming pool filter: 100% polyester fiber material, better dust collecting ability, replacement filter for swimming pool and spa cleaning system Product size: swimming pool filter diameter: 150mm / 5.9in ; height: 241mm / 9.5in; thread: 46.5mm / 1.8inch Product Features: Swimming pool filter collapsible design increases the filter area, small pressure difference, large flow rate, long use time, can be cleaned and saves costs. Product Compatibility: The pool filter is compatible with most indoor and outdoor and above ground pools, indoor and outdoor hot tubs and hot tubs. Perfect job: the filters of pool are essential to keep Lay-Z-Spa in top working order. Simply connect it to your spa and it will filter dirt and grime from the water to keep it clean and healthy.