6" White Combustion/Exhaust Blower Gasket for Archgard Optima PS1 pellet stoves. These 6" Gaskets fit many combustion blower and some convection blowers. This is standard use for exhaust blowers with 6" mounting hubs. Temperature rated at 1,000 Degrees F. Convection blowers take a different gasket. Use the left menu to find one for your convection blower. Non OEM.