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