... is in stock now!!!!!!! no waiting!! 1. Membrane filter to the general structure of the column, dual-use ... production process to ensure that each of the filter membrane filter column cleaned and regeneration in a timely manner ... the 80% of the whole plate,so the filter speed is fast, no resort on the plate, ... the core,and esay to operate. small diatomite filter Vane-type in stock for small factory 0.5t ...