Progreen's BAC-W465P203281 4" x 100' Water Discharge Hose measures 4" diameter with a 6.4" flat width and is 100 feet long. It is easy to use and fits over a 3" or smaller filter outlet. The Progreen hose is versatile - use it in homes, factories, agriculture, and construction. It is ideal for draining pools, backwashing filters, sewage, sump, trash pumps, and more! The durable, leak-proof, 3-ply polyester yarn reinforced construction prevents leaks or bursts up to 90 psi working pressure, 23°F to 149°F. The heavy-duty, PVC material is resistant to abrasions and corrosion. It withstands year-round conditions, making it a reliable hose. It is perfect for optimal storage with the flat hose that takes up less space.