Enviro pellet stove COMBUSTION BLOWER MOUNTING GASKET  This is the factory replacement gasket also known as SIEF-011 on some parts listsFits Enviro Models:EF2, EF3, EF4, EF5 (Evolution), Empress FS, Empress FPI, Meridian, Milan, Mini, Solus, Winsor.The 801275016 (aftermarket) gasket can be used in it's place, all holes are aligned the same and it is less expensive. Click here for that option. Combustion Blower Housing Gasket - Whitfieldshop notes - 801275016 - WHS -psp