These fit Weber DCOE 40 & 45 and IDF 36, 40, 45 & 48, Dell'Orto DHLA & DRLA carburettors. RamAir sock style air filters, which feature two holes cut out of the foam on the underside of the air filter.The two holes are designed, so that you can pull the air filter over the top of the trumpets of the carb or the engine's two air intakes - whichever is necessary.
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