Frost King B2 Mortite Caulking Cord 19-ounce 90-Foot Long, Grey Go to amazon.com Related posts 9 best caulking cord brown for 2022 Expert choice for caulking cord weatherstrip FeatureSeals in cool airPresses into place with fingertipsShuts out hot air, dust, dirt and insectsIt is paintableEasy to install Description90', 19 OZ Roll, Gray, Mortite Caulking Cord Weather-Strip.