Constructed of white Saran fabric, the filter has been designed to screen to 74 microns (nominal) and is for use with Walbro 401 and 340 in-tank fuel pumps.
The outlet fitting is biased towards the end of the filter, making it easier for a pump to be fitted against the walls of a fuel tank/cell. Internal ribbing inside the filter ensures that the filter does not collapse and thus cut off the fuel to the pump.