Frost King C21CP Caulk Saver Bulk Contractor Pack, 3/8 inch Diameter x 350' Long,,, Grey

I have worked with this kind of product before. The price was perfect. I also found other ways that I could use it. Not only did it go into my concrete cracks so I could then not have to use so much self-leveling product in order to fill the gaps. I was also able to use it to help keep the breeze out of some of my old windows. I love this stuff! I also used it, to wrap it around some of my smaller PVC pipes to keep it from freezing. After wrapping it around the PVC pipes I then used duct tape to keep this in place.

Protegido y bien enrrollado

Works for cracks and other openings as a filler prior to caulking or left uncaulked. Flexible and removable. Comes in various diameters and doesn't flake or crack or harden.

I use it to stop drafts from the channels in my double hung windows. It compresses easily and expands inside the aluminum channel to stop the wind from blowing in at the top of the bottom pane.

The product is durable and easy to install. Perfect size of 5/8 inch (The 1 inch would have been too large and the 1/2 inch too small).