Inlet/Outlet: 1", /2", 3/4"; Housing Options: Pressure Relief; Max Pressure: 90 psi; Max Temperature: °F; Service Flow Rate: 40 gpm. View Details. 1 Nov University friends Lily Rogath (left), 26, and Meryl Zises, 25, were both brought up on fresh juice, way before it became the hottest health trend. The Pentek BBFS Two Big Blue Housing Filtration System makes installation and set-up of a high capacity system even easier. Simply purchase two 20 in. x.