Hi, we have Burner Ring Kits for Monitor Heaters.  There is a kit both the large Monitor Heaters (2400, 441, 41 and 40) and for the small Monitor 422.  Each of the items in the kit are also available individually in our Online Store.  Please contact us if you do not find the part you need listed online, we have an extensive inventory including parts no longer available from the manufacturer.  I hope everyone has a Merry Christmas this year!