The product is a case of 50 10″x2.5″ Pure T melt-blown Polypropylene Filter with 20 Micron rating. This water filter cartridge is designed for sediment filtration, removing up to 99% of rust, silt, sand, iron, and other undissolved particles. It is suitable for both commercial and household use, with a capacity of up to 10000~30000 gallons. The filter is made of 100% pure polypropylene material and features a California Prop 65 Warning for water filter cartridges replacement. The brand is Pure T, and it is compatible with models such as aquapure, culligan, and honeywell.