,Reusable foam box.<br> Suitable for Intex Bubble and Jetted Pure-spas. for Replacement of S1 carton.<br> Replacing the filter elements of paper filter is part of the daily maintenance of the pool. These cleaning and reusable foam filters will reduce your cost.<br> The initial cost of the cartridge is slightly higher than that of the cartridge, but the cartridge life is longer for a long time.<br> More durable than the carton, and it can be washed and reused many times.<br> Size: 10.8x7.3 cm<br> Center hole drilling: Approx 4 cm<br> Note: It takes 2 hours for the compressed product to recover<br> colour: blue<br> Material: sponge<br> Package Contents:<br> 16 x Filter Sponges<br> Only the above package content, other products are not included.<br> 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.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin