Click to enlarge

@ *AIR_FILTER (FITS_ALL_CT110'S) (CT90_1979_ONLY) (78's_READ) 17211-102-720 7/21A (43A)

THIS IS THE FOAM FILTER ELEMENT THAT FITS ALL CT110'S

1978 models with the crankcase vent tube on the lower front of the airbox take this CT110 foam filter

43A