Frost King® C22AW 1/2 x 20 Moisture-Repellent Poly Foam Caulk Saver Gray

Frost King Poly Foam Caulk Saver is ideal for various projects around the home. Simply press it into place to fill in large gaps and work right over it. This 1/2 x 20 Caulk Saver is moisture-repellent and very durable. It also works with virtually any kind of sealant. Key Features Include: -Made from durable poly foam -Reduces the amount of caulk needed for large gaps -Frost King Caulk Saver works with virtually every type of caulk and sealant -Moisture-repellent and resilient -Press into place and caulk on top