Filtertek Inc.

James R Berna

Eugene W Altwies

Jeffery A Close

Jeffrey A Close

A filter ring includes a first filter member including a first end portion and a second filter member including a second end portion. The filter ring also includes at least one snap latch mechanism for detachably engaging the first end portion with the second end portion such that the first and second filter members cooperate to define a generally annular shape having a central opening. The first end portion includes at least one key configured to be positioned within at least one keyway defined by the second end portion for inhibiting disengagement of the snap latch mechanism when the snap latch mechanism is detachably engaging the first end portion with the second end portion.

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McHenry, IL, United States of America

James R Berna