LIQUID FILTER ELEMENT HAVING KEYS

摘要

A filter element having a plurality of keys for actuating a locking mechanism of a valve of a filter is provided. The keys are formed on an interior side of a first end cap and extend axially inward toward a second opposite end cap. In one embodiment, the keys are integrally formed in an inner annular wall. In another embodiment, the filter media is embedded into generally flat surfaces of the end caps. The keys function to unlock the locking mechanism of the valve indicating that a filter element is being used.