Jim Hennessy, CSI Rep Gateway Air Filter 8838 General Grant Ln. St. Louis, MO 63123 (phone) 314-729-0033 (fax)
John Waites, HEPAir Rep Waites Co. 14 Sunnen Dr STE 144 St. Louis, MO 63143 314-644-5556 (phone) 314-644-1553 (fax)