Frost King® C21CP® Poly Foam Caulk Saver Weather Stripping Bulk Contractor Pack, 3/8" x 350'

I received product reimbursement in exchange for my honest review. This is such a useful tool to have. I have an older home that's developed spaces along the years. I was able to easily position the rod in the spaces and then put some caulk over it. Final result was clean and professional looking. I've got more than enough for future projects.

I received product reimbursement in exchange for my honest review. There was a lot more length to this roll than I was expecting. It can definitely go a long way. I like the integrity of the foam because, although it's compressible, it bounces back without flattening.

I received product reimbursement in exchange for my honest review. We recently had our floors replaced throughout the whole house. Our new floors are LVP and the old ones were engineered hardwood. This left a gap between the baseboards and the walls and we were trying to figure out the best way to recaulk the gaps. This product was a lifesaver. It's super lightweight and easy to use. It saved us money in caulk as well. I would definitely purchase again.

I received product reimbursement in exchange for my honest review. This product is exactly what I expected. It is very lightweight and easy to handle. The quality is great compared to other similar products and definitely easier than just using caulk

I received product reimbursement in exchange for my honest review. I have so many uses for this backer rod. We redid a 70's home and have some cracks and gaps we need filled. We have an expansion gap between our garage and our cement driveway that we filled. Also some bricks and mortar that cracked. This width is perfect to squeeze in small spaces. Caulk is expensive! So this will save use money (and time caulking) filling our deep gaps. Great value as a contractor pack!

I received product reimbursement in exchange for my honest review. It is the first time using poly foam for saving an expensive caulk. It is really good I have to fix too many big cracks on my windows and I used this product it really helps to use lees caulk and finis the work fast I really love this poly foam.

I received product reimbursement in exchange for my honest review Frost King c22cp poly foam caulk helps to seal holes to keep heat in during winter and cold air in during summer. I've used it to seal windows too. I will continue to use this product as long as it's available in stores or on line. Great Product!

I received product reimbursement in exchange for my honest review. I used these for our plank wall in the patio. The past year has been rough on our back patio and there are new gaps that keep popping up. The backer was easy to use and convenient to put up. It's a plus that it rolls out easily directly from the box and did not need to be fixed. Some spots I had to double and triple but it sit very well. I am happy with my purchase and would recommend it to others

I received product reimbursement in exchange for my honest review. I love the product really lot and how long it is. The poly foam is also very durable and very long. Very soft.

I received product reimbursement in exchange for my honest review. it is described as one roll of caulk, but comes kind of messy in the box. it was hard to deal with, as it did not come wrapped around anything, and went flying everywhere when I went to take it out. other than that, this foam caulk works really well to seal gaps without paying a crazy amount for spray caulking. it is a novel idea, and I really hope it holds up as well as regular caulk.