Pond Underliner is a durable, clean, and safe material to install under ponds instead of using cardboard, newspapers, sand, or old carpet padding. Pond Underliner is constructed of a nonwoven needle punched 4 oz. fabric. Use of this material under your liner will help protect the liner wall from punctures from stones and cushion the pond wall for fish, while allowing gases to escape to maintain the proper biological balance for all pond life. Easy to use, and installs in minutes.
Shipping - Just $9.99 for your entire order.