Butterfly with O-Ring to fix in filter press for zero dripping filter press (CGR Plate)The stitched ‘O’ Ring seats around the sealing edges of the plate and filtrate hole secure tight seal when the filter press is closedZero Feed barrel with stitched EPDM rubber / Silicon barrel. For reduction of the feeding timeWe also offer a unique service for Recess & Membrane filter plates ready Butterfly with ZERO FILTRATION BARREL manufactured special rubber, stitched in-betweenthe barrel in sandwich from to stop cake build up in flow / feed holes