I had a Shark vacuum with a lot of accessories (under appliance, rotating brush, etc.) It broke and I got a Eureka vacuum (Costco). The attachments are a different size. I want to use the Shark attachments. I measured and it seems the attachments are 1 1/4 or 1 3/8 on the Eureka attachment and 1 1/2 on the Shark (of course it differs if you measure inside diameter or outside diameter). Does anyone know what the exact sizes are and what adapter I need?