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

Great product. Works as advertised.

We replaced our deck boards with Trex decking but wanted to fill in the gaps. This backer rod was the solution and looks great!

Worth every cent

Great Value!

The local store only sold this in 20 ft lengths. I needed over 300 ft so buying the majority with this 250 ft roll saved me 50% in cost. I was sealing my driveway to keep rainwater and snow melt from getting under the slab at each joint. For thinner joints and cracks you can cut this in half or even quarters easily with scissors and cram it in. You need to use this stuff to form a bottom before you fill with caulk.

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.

Good item

Easy to install. Filled the gap (you are supposed to leave) between flooring and the walls just fine. Snug fit but material still allows flexibility.