For everyday use and replacement. Filter soap, lotion, oil, contaminants and other airborne particles before they are returned to the water. Easy to clean. use, simply place the first filter on the skimmer basket or place it next to it. flat in the filter chamber. It is recommended rinse the filter once a month and replace it approximately every 3 months. 6 months depending on spa usage. Compatible with Coleman, Maax, LA Spas, California Cooperage and Elite spas. product details ÉCondition : Brand new Material: 80% polypropylene, 20% plastic Diameter: 19.5cm/7.7inch Kind Tips: Dimensions are measured manually, please allow slight measurement errors. Due to color displays of different monitors, photo color may be slightly different from the actual product. Product names are trademarks These are the trademarks of the listed manufacturers or other owners and not of Alwaysforbauhinia. Manufacturers do not necessarily endorse the use of these products.