For 80 years Smith Filter Corporation has used the latest technological advancements to produce the finest filters in the mar ... ket. Even though custom sizes are Smith Filter's specialty, we always maintain large quantities of stock filters, ready for immediate shipment. We are centrally located in Illinois, making shipping in the U.S. and internationally both convenient and economical. Large orders are commonplace at Smith Filter, but we still welcome small orders. We supply a quality product at a reasonable cost, even in small quantities. We hope to be working with you soon to solve your Air and Grease Filter needs. You will find our staff friendly and easy to work with. They are knowledgeable in the latest filter technology and will be happy to ensure the proper filter selection for your application. read more