The Aqua UltraFiltration™Membrane System offers a compact, T-rack design, zero break fibers and no air scouring! The multibore fibers are made of polyethersulphone (PES) with seven (7) capillaries per fiber for superior strength. The alternating top and bottom feed and inside-out filtration flow provides uniform filtrate and backwash flows to minimize plugging, chemical usage, and cleaning frequency for longer membrane life. The membranes can be cleaned at a higher pH with the use of caustic instead of chlorine. It also provides better virus removal, 6 log for bacteria and 4 log for viruses.