6″, 8″, 12″, 18″ Squeegee & Channel, GT053 6″ Squeegee & Channel, GT054 8″ Squeegee & Channel, GT055 12″ Squeegee & Channel, GT056 18″ Squeegee & Channel Stainless steel channel and soft rubber squeegee blade insert for use with the Unger Pro Handle (GT050 or GT050E). Used in the flat glass cleaning process and in the final cleanup after the film installation to remove soap streaks or smudges.