Duck Max Strength Silicone Weatherstrip Seal features cracks and gaps around windows and doors can cause drafts and air leaks that lead to high heating and cooling costs. are used to seal gaps around windows and doors that may let conditioned air escape and outdoor air in. They can also help keep out unwanted dust, insects and pollen during the warmer months.
- Strong, flexible silicone seal
- Seals gaps up to .25″ around windows and doors
- Easy to install
- Lifetime guarantee
