Despite improvements in durability, most expandable hoses are not suitable for use with a pressure washer. The extreme pressure (2000-3000 PSI) will overly expand the latex, likely leading to it bursting.

Generally, expandable hoses are not as durable as standard garden hoses and won't withstand as much internal water pressure. If your spigot's water pressure is over 50 psi, consider attaching a flow reducer to keep the water from exerting too much pressure in the hose.