AJR Filtration manufactures high quality OEM replacement Dust Collector Cartridges. We offer replacement cartridges for most common designs by every major manufacturer of cartridge style dust collectors. We stock common materials such as: cellulose, cellulose fire retardant, spun-bonded (regular, aluminized, and with PTFE membrane). Material specification sheets are readily available upon request. AJR Filtration's dust collector filter cartridges are constructed to the highest standards to ensure that they are able to withstand the environments to which they are exposed.