THIS AIR FILTER ELEMENT FITS THE CT90 "KO" 1968 AND OLDER MODEL.

IT ALSO FITS THE 1980 AND 81 C70 PASSPORT'S.

IT IS DIFFERENT THAN THE CT200, BUT MIGHT BE ABLE TO BE MADE TO WORK, I REALLY DON'T KNOW. I DO KNOW THE CT200 FILTERS ARE DISCONTINUED.

ALSO FITS ALL CM91'S.