Patent ID: 8105483

Claim:
A filter assembly, comprising: a plastic filter housing including a wall defining an interior space and a water sump to collect water, a sensor mounting receptacle formed in the filter housing adjacent the water sump and a first plastic snap-fit connection member formed on the sensor mounting receptacle; a filter disposable within the interior space of the filter housing, the filter designed to separate water from a fluid to be filtered by the filter; and a water sensor mounted within the sensor mounting receptacle and at least partially extending into the water sump; the water sensor having a generally cylindrical sensor body with an upper portion, a lower portion, and a neck portion between the upper portion and the lower portion, a second snap-fit connection member on the upper portion that engages the first snap-fit connection member to secure the water sensor to the filter housing, a stop mechanism connected to the lower portion to limit insertion of the water sensor into the sensor mounting receptacle, and an elastomeric radial sealing ring extending circumferentially around a radial outer circumference of the lower portion and configured to seal between an outer surface of the water sensor and an inner surface of the sensor mounting receptacle; the elastomeric sealing ring is positioned between the second snap-fit connection member and the stop mechanism.