Filti Nanofiber Non Woven Low Density MERV 15 Replacement 12.75 x 8.38 x 26 Dust Collector Air Filter for Workshops and Warehouses: Amazon.com: Industrial & Scientific
Amazon.com: KochTM Air Filter C33a792-001 Dust Collector Cartridge Open/Closed 8-1/8"W X 16-5/8"H X 8-1/8"D : Industrial & Scientific