Muffler Stub Spark Arrestor Replacement Blower Replacement As Picture Muffler Spark Arrestor Metal Construction Fire-prone AreasMuffler Spark Arrestor Replacement Blower Chainsaw, Metal Construction, Fire Prone Areas A replacement muffler spark arrestor for petrol powered leaf blowers, chainsaws, and other small engine outdoor power equipment. The spark arrestor is a metal mesh screen fitted inside or over the muffler exhaust outlet that prevents hot carbon particles and embers from being discharged from the exhaust, reducing the risk of fire ignition in dry grass, leaf