and immoderate quality,Reusable foam box. Suitable for Bubble and Jetted Pure-spas. for Replacement of S1 carton. Replacing the filter out points of paper filter out is a part of the on day-after-day foundation maintenance of the pool. These cleansing and reusable foam filters will lower your cost. The preliminary fee of the is barely larger than that of the , however the life is for a long time. More durable than the carton, and it may be washed and reused many . Size: 10 cm Center gap drilling: four cm Note: It takes 2 hours for the compressed product to get better colour: blue Material: sponge Package Contents: 16 x Filter Sponges Only the above equipment content, different merchandise should not included. Note: Light and diversified reveals could cause the colour of the thing within the photo a piece varied from the genuine thing. The size allowed error is +/- 1-3cm.