Builder's Best 111718 4" x 8ft UL Transition-Duct Single-Elbow Kit

Builder's Best is a nationwide, high-performance manufacturer of quality venting solutions, designed to meet specific constraints of areas such as dryer venting, bathroom fan venting, fresh-air ventilation and general venting. The 4 in. x 8 ft. UL Transition-Duct Single-Elbow Kit contains pipe, elbow, fittings and clamps. Don't piece together the parts, get a kit.