PB 430325 Squeegee Swivel Caster for Minuteman Power Boss Floor Scrubbers. Durable poly swivel caster with grease fitting. Wheel measures 3/8" x 1.5". Fits rear squeegee assembly on many Minuteman Power Boss floor scrubbers including Core 50, 320 and ES2832 series. One or more may be required per unit. Priced Each. Replaces Minuteman Power Boss 430325. Our Part Number PB 430325