from dons web site
.
here is the replacement coil purchasing information :
Douglas Maxwell
Hyndman Industrial Products, Inc.
(260) 483-6042 Ext. 313
(260) 483-1722 Fax
The part number will be GLASP.COIL.KIT. A kit includes three replacement coils and three sets of coil hanger wires. Call for pricing.
They accept MasterCard, Visa, Discover or American Express credit card payment. Lead time for shipment of these kits would be 3-5 days after receipt of order.