Filter Compatible Models Our pool filter type S1 is compatible with all Inte 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 Inte 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 etra durable plastic and high quality Dacron paper pleats. Our hot tub spa filters are so easy to clean, you can reuse them over and over again. Enjoy clean leisure time in your pool.Warm Tip It is recommended to replace spa filters regularly to maintain filtration efficiency and replace them every 23 weeks to keep the water clean. Provides a larger filter surface, makes the filter efficiency higher, toughness, resistance to dilute acid, fine filtration and strong dirt absorption capacity.Powerful Filtration Performance The powerful pressure of the filter can effectively remove hair, leaves, dust, sediment, sand, impurities, etc. Give you clear and clean water, so you can easily enjoy your health.Color blueMaterial PETnonwoven fabricSize 107 74 mmPackage contents6 Inflatable pool filterOnly the above package contents, 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 13 cm.