General description 100% brand new and high quality, this 32 Piece Series for Pure Spa Reusable Washable Foam Filter Cartridge is designed for Bubble and Jetted Pure spas, serving as a replacement for the S1 carton. Replacing the filter elements of the paper filter is essential for daily pool maintenance. The cleaning and reusable foam filters will help reduce your costs over time, as they can be washed and reused multiple times, offering a longer lifespan compared to traditional cartridges. Technical specifications Size: 10.8 x 7.3 cm Center hole drilling: approximately 4 cm Material: sponge Package Contents: 32 x Filter Sponges Measurement allowed error: +/- 1-3 cm Other information It takes 2 hours for the compressed product to recover its color: blue Note: Light shooting and different displays may cause the color of the item to differ slightly from the actual product.