The STIHL pump conditioner and winterizer protects your pressure washer against freezing for safe storage in cold weather. This product comes in a 16 oz. bottle and is designed for use with all STIHL pressure washers to prevent harmful build-up of hard water mineral deposits in the pump. It also preserves seals and pistons and is great for cold weather and extended storage.
PRECAUTIONARY MEASURES: Make sure the engine switch is in the OFF position and disconnect all pressure washer hoses. Pull the rope when squeezing the conditioner and winterizer to help flush the fluid through the entire pump.

Improper use of any power tool may cause serious or fatal injury. Read, understand, and follow carefully the operating and safety instructions in your instruction manual before using such products. STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only. Improper use of any power tool may cause serious or fatal injury. Read, understand, and follow carefully the operating and safety instructions in your instruction manual before using such products. STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.
Proposition 65 - EnglishThis product contains chemicals known to the State of California to cause cancer and reproductive harm. www.P65Warnings.ca.gov