[Filter Compatible Models]Our swimming pool filter type S1 is compatible with for all Intex PureSpa models including 28403E, 28407E, 28443E, 28453E, 28421E, 28423E and 28413E.[Powerful Filtration Performance]Premium quality dacron fabric collects hair, leaves, dust, sediment, sand, etc; easy to clean and replace.The S1 intex hot tub filter cartridge is installed inside the filter pump and captures dirt as it passes through the system.[Easy To Clean]Our type S1 replacement spa filters feature extra-durable plastic and quality Dacron paper pleats.our spa filters for hot tubs are so easy to clean,so you can reuse them again and again.Enjoy clean leisure time in your pool.[Warm Tip]It is recommended to change the spa filter regularly to maintain filtration efficiency, and replace them every 2-3 weeks to keep the water clean.Provide a larger filter area, make the filter efficiency higher, toughness, resistance to dilute acid, fine filtration, and strong dirt absorption ability.[Powerful Filtration Performance]The powerful thrust of the filter can effectively remove hair, leaves, dust, sediment, sand, impurities, etc. Provide you with clear and clean water, allowing you to easily enjoy your health.Colour: blueMaterial: PET+non-woven fabricSize: 107 x 74mmPackage Contents:6 x Inflatable pool filterOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.