Sashco30251 Pre-Caulking Filler Rope Backer Rod Roll, 100' Length x 1/4" Width, Grey, 1/4" x 100'

Really like this dark dark grey - almost black filler rod. Worth the extra few $

This works great. The way the cells break down helps the backer rod fit easily into smaller cracks as well. I wanted to buy this backer rod in black and was disappointed it only came in grey, but this is a dark grey so it still works well. I like the darker colors because then I can fill a space and I don't necessarily have to caulk over it because the backer rod is not obvious. Sometimes the light grey works better for that, depending on the area it's needed in, but the darker colors work best for my applications and this product works great.

Needed this to use as prep for sealing driveway cracks. Purchased online because big box hardware stores didn't carry 1/4 inch backer rod. Kinda pricey.

It's foam my dude.. I put it inside weather stripping not cracks

This product works great for plugging gaps where cold air is entering the house (windows, doors, trim etc.). Several sizes to choose from - make sure you have the appropriate size for the gap you are trying to fill.

Had some trouble with the vendor at first.Was sent a different product from a different vendor at a higher price.Situation was righted.After that, found this product to be superior to what was available locally.(Make sure you get the product featured on the Sashco storefront for the price listed.)

As far as I know, all filler rope like this is the same. And this is as good as all the other rope I've used.

Item was way smaller than it appeared. Breaks easily