Vermont Castings Oval to Round Offset Adapter Part No. 0001841 Part#0001841 is the replacement oval to round offset adapter for Vermont Castings wood stoves. Fits the following models: wood stoves-Vermont castings: DEFD36 Additions: Vermont Castings has had a challenging history. Originally based in Vermont, Vermont Castings was purchased by a company called CFM (Canadian Fireplace Manufacturers). CFM proceeded to ‘restructure’ corporately a few times, and was eventually purchased by a company called HHT. Because Vermont Castings changed ownership and moved production so many times, not to mention the thousands of replacement parts in their stoves – accessing the correct replacement part on a timely basis is not always easy. New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable). If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag. See the seller's listing for full details. Others: Vermont Castings Part# 0001841 OEM HHT part May fit other models of Vermont Castings stoves as well. Please check your owners manual for part numbers.