Additional Details ------------------------------ Product description: "PAPER BAG, STYLE J MICRO-FILTRATION ENV 3PK COLLAR AS THE OEM BAG, IN ORDER TO FIT THE CONTOUR MODELS. EFFECTIVE FEB 15 2004 EUREKA STYLE J WILL NOW USE THE SAME THE NEW COLLAR WILL RETROFIT THE OLDER VACUUMS THE OLD STYLE COLLAR WILL NOT PROPERLY FIT THE NEW MODELS BUT"