alphamoto FOUR Chrome POD oval Air Filters Suzuki GS550 E L 1977 1978 1979 39MM The listing is for Four 39mm (1.535 inches) oval air filters Will work for: Honda CB750 750 1969-1974 Kawasaki KZ550A 550 1980-1981 Kawasaki KZ550C LTD 550 1982-1983 Kawasaki KZ55D GP 550 1981