Matala Filter Media - Grey Roll (22-in. dia. x 6-in. thick)

roll matala grey 6 inches thickr-matala, the perfect "drop in" media for vortex filters and barrel filters. R-matala has the same qualities as the sheets of matala but formed into a coiledâ pre-cut cartridge. Simply select the diameter roll and the density you need for your round tank and drop it in. Â r-matala coils are not designed to beâ unrolled. Â they are pre-cut to fit your tank. Custom sizes can be special ordered. super high-density graythe gray matalaâ will filter out a much smaller particle and yet still maintain good flow distribution. The gray r-matala should be used as the final stage in your filter flow. In largerâ systemsâ all four types can be used in sequence to essentially remove all solids. the gray r-matala should be used as a high-efficiency biological filter media due to its very high available surface area andâ free-flow of water. Nitrifying bacteria will thrive within the gray r-matala environment. r-matala will naturally wedge in place without any need for support. However, you must measure the inside diameter of your tank and order the coil size which fits tight. If the coil fits too loose then the water will flow around the pads instead of through them. Four sequential densities can be perfectly employed to achieve maximum solids / bio-filtration. Each roll is 6 inches thick with a tremendous potential to trap dirt and yet is super easy to clean. Â matala media works perfectly withâ upflowâ filter designs. The idealâ upflowâ configuration would be the black or green r-matala at the bottom ofâ filterâ to capture the large particles. The next layer should be the blue r-matala to act as a biological filter and will filter out a medium size particle. The final layer will be the gray r-matala for high surface area biological filtration and fine particle removal. If you only have room for three layers of r-matala, we suggest you use the black on the bottom followed by the blue and the gray.