| Unit Count | 25 Feet |
|---|---|
| Color | Grey |
| Water Resistance Level | Waterproof |
| Material Type | Rubber |
| Maximum Gap Fill | 1.13 Inches |
| Surface Recommendation | Floor |
| Item Form | Foam |
| UPC | 7445047742798 |
Check the listing for details. 1" Closed Cell Backer Rod/Crack Filler (25 Ft). Color: Grey, Condition: New. Listed at 17.74 USD. It allows caulk to span a gap without ripping loose. In the example above backer rod is used where the radon pipe enters the floor before caulk is applied. Sold in 25 foot lengths. Fill large cracks.