Pressure Washer Undercarriage Cleaner Water Broom 24 Inch 4000 PSI 3 Extension W by | Jul 22, 2026It functions as a high-pressure washer for undercarriage. Used for both cold water and hot water up to 194°F. All parts have M22 1/4″ quick connectors for easy use and is compatible with most gas and electric pressure washers.