Pond Liner Underlay 12 oz offers superior puncture resistance for all pond liners. Ideal for rocky soil and as a extra buffer on top of the liner when placing gravel or large rocks. 12 oz Underlay that is twice as thick as normal 6 oz Underlay

12 oz Pond Liner Underlay is recommended for all pond liners, especially Carlisle Aquatough and Elevate PondGard EPDM liners. Pond Liner Underlayment is available in 15' widths, but you can use it to accommodate any size pond by simply overlapping multiple pieces with no seaming required.

12 oz Pond Liner Underlayment Features:

• Especially beneficial for rocky or uneven installations where a heavier protective layer is needed
• 12 oz Pond Liner Underlay- twice as thick as normal 6 oz Underlay
• Helps prevent liner punctures and premature liner failure
• Provides a thick, cushioned barrier beneath EPDM, PVC, and other flexible liners
• Ideal for extra padding on top of the liner when placing gravel or large rocks
• Stabilizes ground under the liner to keep EPDM and other pond liners from "over-stretching"
• Quick and easy to install.
• Resists "settling" unlike newspaper or sand
  
  

Custom Sizes Available in 15' widths