For in-store pickup only and with limited stock varying by ZIP code, Ace Hardware offers the Peak Deicer with Rain-Off 1-Gallon Bottle, model no. PKN0I3, for $2.49. (Click "Check Availability" and select a store to add it to cart.) In cart, it drops to 99 cents. That's the lowest price we could find by $3. It deices to -25° F.

Also available for pickup only is the Peak Bug Cleaner Windshield Wash 1-Gallon Bottle, model no. PBN0K3, for an in-cart price of 99 cents. That's the lowest price we could find by $2. It works in temperatures as low as 32° F.