PU12100 - Blue Thumb Protective Underliner Roll (folded to 6')The use of underliner increases the puncture resistance of rubber liner by 321%!
- Provides additional tear and puncture protection from roots, stones, or any other sharp objects
- Provides enhanced soil stability and erosion control
- Underliner can be used on top of liner as well to protect from punctures when adding gravel & boulders
- Both 6’ wide and 12’ rolls are FedEx-able!