Get current pricing for Hoesch, M-30 Plate And Frame Filter Press. Hoesch M-30 218c 1.66pp D20-c, Max Temp 195 Max Psi 150. (18) Flow Plates-- 31 1/2 By 31 1/2 Lenser 4-91 Stamped On Them . Product Category: Process Equipment, Sub Category: Process Filters: