PRODUCT HAS FREE SHIPPING. The 8.0 cubic foot tub (blue or green) has a load rating of 400 pounds. The tub is mounted on a zinc plated steel frame with Flat Proof Rib tread tires, models CT381 or CT382. Also available with Flat Proof Knobby tread tires, CT391 or CT392. ASSEMBLY REQUIRED. Manufactured and sold by PONDEROSA MARKETING INC.