Atlas 807332 Hydra self-cleaning coarse sediment filter 90 micron stainless steel mesh screen 40 mm 1-1/2 inch BSP(F)Atlas 807332 Hydra self cleaning coarse sediment filter 90 micron stainless steel mesh screen 40 mm 1 1 2 inch BSP(F) ports with brass inserts 2 x pressure gauges included Suitable for coarse sediment filtration in homes on municipal water supplies Used as a pre filter for water treatment on rural supplies as well as some commercial and industrial applications These filters perform well with lower pressure drop when higher sediment loads are present