Improve the energy efficiency of your home with this Double Draft Block from Frost King. Designed for use with sliding doors or windows, this block measures 3-3/4 inches by 36 inches and features a slide-under weather seal. Made with high-quality materials, this draft block is built to last and will help keep your home comfortable all year long. Perfect for homeowners looking to save on energy costs, this draft block is easy to install and will provide immediate results.
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