GARY,

ALL IN CABELLA'S, CABELLA'S KAMLOOPS, CREEK COMPANY ODC 420, FISH CAT 4, OUTCAST SUPER CAT FLOAT TUBE, TROUT UNLIMITED BIGHORN, KENNEBEC, AND TOGIAK. IT MAY ONLY BE A MARKETING PLOY. IF YOU CLICK ON ONE OF THE PRODUCTS AND SELECT THE "COMPARE TUBES" OPTION THE DIMENSIONS OF EACH "SEAT" ARE LISTED AS WELL AS OTHER SPECS.

THANKS FOR YOUR INPUT