Industrial Process Filter Housings GuidesHome > Categories > Industrial & Scientific > Filtration > Industrial Process Filtration > Industrial Process Filter HousingsGuides for Industrial Process Filter Housings Big Blue Water Filter Pentek Big Blue Filter 20 Inch Pentair Big Blue 1 Inch Npt Pentek Water Filter Pentair Pentek Big Blue Filter Big Blue Housing Water Filter Mounting Bracket Big Blue Water Filter 20 Inch