WATERRO Big Grey 20" Replacement PP Filter Bag – 100 Microns The WATERRO Big Grey 20" Replacement PP Filter Bag – 100 Microns is made of high-quality food-grade polypropylene (PP) and designed to effectively retain sand, gravel particles, rust, sediment and other coarse mechanical impurities in cold water. The filter bag is intended for WATERRO BIG GREY 20" bag filter housings, providing very high water flow, high dirt-holding capacity and easy replacement. Key benefits High-quality food-grade polypropylene 100-micron mechanical filtration Large filtration surface High dirt-holding capacity High water flow with minimal pressure loss Retains sand, gravel particles, rust and mechanical impurities Quick and easy replacement Compatible with WATERRO BIG GREY 20" filter housings Suitable for domestic and industrial use Long service life Applications Suitable for whole-house water filtration systems, well water, commercial buildings, agriculture, industrial water treatment systems and as a replacement filter bag for WATERRO BIG GREY 20" bag filters. Technical specification Parameter Value Product type Replacement filter bag Filter type Polypropylene (PP) Filtration rating 100 microns Size 20" Material Food-grade polypropylene Intended for Cold water Compatibility WATERRO BIG GREY 20" bag filter housings Package contents 1 × WATERRO Big Grey 20" Replacement PP Filter Bag – 100 Microns Choose WATERRO for effective high-flow mechanical filtration and reliable protection of the entire water system.