Harbortown Marine
For Harbortown Marine & Harbortown Flag
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Alcohol is less expensive than Propylene Glycol, so it's often used as a filler to fool you into thinking you're getting a good price. Compare apples to apples...Check Labels & Spec Sheets!
If either has a combustible warning, stay away!
Harbortown Stocks Pure PG, Not Alcohol Blends.
-50° RV/Winter Home & Boat Water Systems     $  9.99
-100° Engine Antifreeze w/Corrosion Inhibitors $19.99
-200° Concentrate w/Corrosion Inhibitors          $39.99
Degree ratings are hard freeze in bottle, Before mixing with
any water that may be remaining in the system, and
Damage is caused BEFORE reaching hard freeze point.

Current Hours: Mon-Sat 9am-6pm, Sun 9am-4pm