The V-belts listed are for use with commercial and older residential openers. The belts are necessary for the opener to function.
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V-Belt 5L300 (5/8" X 30") -
V-Belt 4L390 (1/2" X 39") -
V-Belt 4L380 (1/2" X 38") -
V-Belt 4L370 (1/2" X 37") -
V-Belt 4L350 (1/2" X 35") -
V-Belt 4L340 (1/2" X 34") -
V-Belt 4L330 (1/2" X 33") -
V-Belt 4L320 (1/2" X 32") -
V-Belt 4L310 (1/2" X 31") -
V-Belt 4L300 (1/2" X 30") -
V-Belt 3L310 (3/8" X 31") -
V-Belt 3L300 (3/8" X 30") -
V-Belt 3L290 (3/8" X 29") -
V-Belt 3L285 (3/8" X 28.5") -
V-Belt 3L280 (3/8" X 28") -
V-Belt 3L270 (3/8" X 27") -
V-Belt 3L210 (3/8" X 21") -
V-Belt 3L200 (3/8" X 20") -
V-Belt 3L160 (3/8" X 16")
