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Today's Hours 8am - 11pm estThe Nu-Calgon 430051 flush kit gun is designed for ease of use during HVAC line set flushing. This tool connects easily to a standard charging hose and facilitates effective flushing of contaminants. It features a user-friendly trigger mechanism that allows for precise control during application. Need a part that you don't see on our site? Reach out to a sales representative today!