There is Pressure Filter offered by us that is a closed tank with a single or a combination of filter media for removal of one or several contaminants. It is in bed construction to rapid gravity filters, except that they are contained in a steel pressure vessel. It is an essential part in most hydraulic systems. Hydraulic pressure filters are located downstream from the system pump. Pressure Filter is commonly used for iron and manganese removal from groundwater, which is first aerated to oxidize the iron or manganese present, then pumped through the filter to remove the suspended material.