Fulton Fas Lok Straight Class II Trailer Coupler 2" Ball 2" Channel 3500 Lbs. 3500lbs. 22200 0101. The Fas-Lok latching mechanism allows quick and easy trailer hook-up and is factory adjusted for convenience. 2" Ball 2" Channel 3500 lb. weight capacity. Features of Fulton Fas Lok Straight Class II Trailer Coupler 2" Ball 2" Channel 3500 Lbs. Class II coupler Fits 2" hitch balls Channel Size: 2" Weight Capacity: 3500 lbs. Zinc-plated for corrosion-resistance Package Contents: Fulton Fas Lok Straight Class II Trailer Coupler 2" Ball 2" Channel 3500 Lbs. Fulton 22200 0101: Fas Lok Straight Class II Trailer Coupler 2" Ball 2" Channel 3500 Lbs. 3500lbs.