Ceramic Catalytic Combustor for Lopi Fireplace Xtrordinair Wood Stoves by Travis Industries Made in the USA by Condar, the Combustor Experts. For Fireplace Xtrordinair models FPX36 Elite and FPX44 Elite. Measures 18" long X 3.6" wide X 3" thick. Made of high-quality materials; approved by the Environmental Protection Agency. Dipped in a wash that contains platinum and palladium; elements engineered to maximize the catalytic reaction. 5-year pro-rated warranty (Claims are handled quickly by Condars tech service department 8am-5pm Eastern Time).