Cobra Products 333 Drain Cobra Large Bladder Product Description The Large Drain Bladder helps clear 4 -6 in. drains by expanding in the drain and forcing water pressure through the clog. The bladder is designed for use with garden hoses. From the Manufacturer This Drain Cleaning Water Bladder clears from 1-inch up to 6-inch drains as it expands in the drain, forcing water pressure through the clog. It attaches easily to a garden hose and is environmentally safe. Features Clears 4-inch to 6-inch drains Quality Rubber Construction Brass fittings Attaches to garden hose Expands in drain to force water through clog USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.