Fulflo MP (Membrane Protectors) filter vessels protect membranes by prefiltering R.O. feed water. MP Filter Vessels are ideal for a wide range of filtration applications including prefilterating of brackish, process and sea water. All MP Series vessels are built in accordance with ASME Boiler and Pressure Vessel Code, U stamp. All MP vessels have dual purpose bottom seats for use with either double-open-end or 222 O-ring design.