The FR/L & FR/LN series Filters are used for tank top mounting in the return line of the system and provide protection for tank and operating pumps as a result of filtering out dirt from the installation runback. The inlet is on top part of the housing which is outside the tank while the outlet is at the bottom of the housing and discharges into the tank.
These filters can also be used as low pressure line filters. The filter housing has an element locating spigot. The top cover is used for holding the element and is unscrewed for maintenance.