TN 1224933 Urethane Outer Side Brush Squeegee for Tennant M17 Riding Floor Scrubbers. An upgraded oil, chemical and abrasion resistant rear (outer) squeegee. Manufactrued with heavy duty polyurethane squeegee material. Polyurethane blades are used in areas with heavy oils and petroleum products and can also be used in heavily abrasive flooring or in areas with metal or glass. This is an optional outer side scrub brush squeegee blade. This can be found on Tennant M17 riding floor scrubbers equipped with the optional side scrub brush. Measures 20.38" x 4.5". This blade works in conjunction with the urethane inner squeegee, TN 1224935. One outer blade required per unit. Priced Each. Replaces Tennant 1224933. Our Part Number TN 1224933