This package contains 2 genuine Eureka "Style RD" round upright belts. One belt is used at a time although it should be changed at least once per year to keep the cleaner performing well. This belt is for all Eureka and Sanitaire uprights which use a round type belt. These uprights typically have a height adjustment knob near the front of the vacuum.

Eureka's package states that this belt is for Eureka upright vacuum cleaners in the 600, 1400 1900, 2000, 2100, 4000, 5000-5175, 6400 and 7500 series.   For similar products see our list of Eureka Vacuum Supplies. Show Less