Nutone 391 Central Vac Vacuum Bags Micro-Lined with Closure & Dust Seal. Aftermarket Replacement. 6 packages of 3 per package 18 total bags. Fits CV350, CV352, CV353, CV450, CV653 & CV750. (44186, 63165)May also fit other models such as AstroVac, Broan, Cyclovac, Dynavac (some models), Easyflo, Eureka Filteraire, Frigidaire, Housekeeper by Rittenhouse, Husky, Miami Carey, Singer, Smart, Soluvac, Vacuflo 200. 8 inches wide x 26 inches long. PLEASE NOTE DIMENSIONS AND PICTURE BEFORE ORDERING. Buy this and receive free shipping.