These heavy-duty, disposable plastic bags from American Fabric Filter Co. are designed to fit most brands of dust collectors, including Delta, Grizzly, Jet, and other OEM manufacturers. The 6-mil thick and come in two sizes: 21 in. in diameter by 50 in. long, and 24.5 in. in diameter by 2 in. long; they come in rolls of 50. 800-367-3591, AmericanFabricFilter.com.