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4003501 - Bar's Xtreme Supplemental Coolant Additive

List price: $7.81
You save: $1.56 (20%)
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Safegaurds against water pump damage, avoids liner pitting and scale buildup, compatible with conventional ethylene glycol, and extends antifreeze life. 

160z. bottle.  One bottle treats 4 gallons.  Free test strip attached to the bottle!