2x reusable pool filter, foam cartridge type 20x10cm Description Replacing paper cartridges is part of the daily maintenance of your pool and changing them regularly can be expensive. These washable and reusable foam filters will reduce your costs. The initial cost of these cartridges is slightly higher than paper cartridges, but they will last much longer than cartridges. These foam filters are more durable than paper cartridges and can be washed and reused many times. These foams can simply be cleaned and replaced. Specifications. Material: filter foam Colour: blue (as shown in the picture) Size chart. Dimensions (H x D): 20 cm x 10 cm/7.87 * 3.94in; centre hole punch: 4 cm/1.57in. (approx.) Package includes. 2 x pool filter cartridges Note: Due to each monitor colours may vary slightly due to the colour calibration of each monitor . Manual measurement.