CASTERS 1 Series Capacity up to 145 lbs. 2 Series Capacity up to 325 lbs. 3 Series Capacity up to 400 lbs. 4 Series Capacity up to 1400 lbs. 6 Series Capacity up to 1500 lbs. 7 Series Capacity up to 3500 lbs. 8 Series Capacity up to 6000 lbs. Medical Encore Specialty For assistance selecting the right Caster for you, call MidSouth Casters & Equipment today! 800-264-6809