Eureka Style D replacement belt, part # 72393. The Eureka D belts is a referred to as a cogged or geared vacuum belt.
Eureka # 72393 belts fits the Eureka 5890, 5900 and 8850 series uprights . Belt is 1/4 inch wide and has teeth on the inside (geared belt). Each package consist of 1 belt.
Examples of Eureka vacs that use the D belt include the CompleteClean 8873AZ and Pet Lover Plus 8862AVZ & 8863AVZ.