Hydraulic filters are important components of hydraulic circuits of modern equipment. Below Hydraulic filter selection guide will be help full to choose best hydraulic filter.Working  pressure  and flow rate of the  hydraulic system:  Filters are designed based on these two basic factors. Unless these are specified one can not select filter properly.Every manufacturer precisely put manual selection guide based on various factors like type of filtering media and micron rating , hydraulic filters by size , pressure drop allowed etc. This has to be combine with user’s own experience regarding problems with filters  while selecting.