TN 78564 Rear Squeegee-Urethane for Tennant. Priced Each. Fits Tennant 528. Measures 49" x 5". Polyurethane blades are commonly used for special situations where heavy oils or chemicals exist. These urethane blades are also very abrasion resistant and can be used in glass manufacturing facilities, bottling plants, or other areas where broken glass may be an issue. These can also be used on concrete sidewalks and similar abrasive surfaces. Replaces Tennant 78564. Our Part Number TN 78564