Hi-Tech pp sediment filter for commercial ro 20'' 2.5 dia 5 micron 

• Sediment filter is made of fine melted polypropylene, which is blown and spun in a cylinder-like form. The main function of sediment filter is to remove large and fine particles from a drinking water, such as sand, dirt, silt, and rust particles. Each cartridge is individually shrink-wrapped.
• Can Be Inserted Inside Any Standard 20" and 2.5 dia Housing And Used As A Sediment Particle Protection Filter
• Three Times The Dirt-Holding Capacity Of Similar Sized Sediment Cartridge.
• Sediment Filter is Melt Blown with thermally bonded 100% Pure POLYPROPYLENE Microfibers.
• 5 Micron Sediment PP Water Filter Cartidge 100% Virgin Polypropylene Material It is effective in removing dirt, rust and sand particles