[High Quality Filter ]Innovated "Dirt-Locking" technology makes the quality of filtration (around 20 Micrometre ) and for limited water consumption. The fabric traps many more contaminants than regular fabric. [Compatible with type S1 filters]Replace 29001E filter . Works for all models including 28403E, 28407E, 28443E, 28453E, 28421E, 28423E, 28413E, and 28453E. [Easy to clean]The inflatable hot tub filter is installed inside the filter pump and captures dirt as it passes through the system. This filter effectively adsorbs dirt and easy to clean. Simply take the filter out of the pump and spray off the debris with a garden hose. [Powerful Filtration Performance]The powerful thrust of the filter can effectively remove hair, leaves, dust, sediment, sand, impurities, etc. you with clear and clean water, allowing you to enjoy . [Efficient Filtration Area] a larger filter area, make the filter efficiency higher, toughness, resistance to dilute acid, fine filtration, and strong dirt absorption . size:Outer diameter 107mm, inner diameter 43mm, height 74mm Material:PET+non-woven fabric colour:Blue Package Contents: 8 x Inflatable pool filter Only the above package content, other products are not included. Note: Light 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.