Karcher Pump Guard Anti-Freeze Protection for Electric & Gas Power Pressure Washers, 16oz The Karcher Promise: Cleaner. Quicker. Best-in-class cleaning performance. Prolongs the life of your electric or gasoline pressure washer Guards against freezing down to -25 degrees Fahrenheit; highly recommended for winter storage! Use year round to protect your pressure washer from corrosion and premature wear Adds lubrication to valves and seals to prevent sticking. Made in USA.