The MMF consists of a carbon steel tank with a alse bottom supporting strainers.  Tank with necessary interior lining and epoxy coated exterior. 
The selection of the filtration media varies with the characteristics of the water to be treated.  The most common media consists of coarse sand, fine sand and anthracite layers.

Face piping with automatic valves, control panel to control the automatic backwash sequence are a part of the MMF supply.