1、Powerful Filtration: For maximum filtration efficiency, pool filiter can easily remove debris and contaminants, keeping your pool always sparkling. 2、Strong Compatiblity: SPA fliter element is suitable for hot tub, spa, children swimming pool, etc. And compatible with for PWW50L, 4CH 949, FC 0172 and so on. 3、Easy to Wash: It is also easy to wash and clean to recondition the filter. For maximum efficiency, it is recommended to clean cartridges once a week and replace cartridges monthly or earlier. 4、Long Working and Protective: Can help extend the life of filter and protects your pool or spa. You can keep your pool clear all time if you want. 5、Crystal Clear and Safe: Filtration products are designed to be long lasting and easy to clean so you can keep your pool and spa crystal clear and safe. Item Type: Pool Filter Product Material: PP Weight: Approx. 712g / 25.12oz Product Size: Approx.378x125mm/12.88x4.92in Colour: Blue Application: For hot tub, spa, children swimming pool, etc Compatible Model: for PWW50L, 4CH 949, FC 0172 1 x Pool Filter