Aquaboon 25S-5M Sediment Filter Cartridges, 10-Inch x 2.5-Inch, 25-Pack Made of 100-Percent Melt-Blown Polypropylene, 4-layer filtration Dimensions 2.5-Inch x 10-Inch Micron Rating is 5-Inch Fits 10-Inch filter housings NSF certification