Superfish Security Underlay 5 × 2 m is a protective underlay for pond liners, designed to be placed between the ground and the liner. It helps protect the pond liner from damage caused by stones, roots and uneven ground.

Using an underlay improves the durability of the pond structure and extends the lifespan of the pond liner. It is especially recommended for installations on rough or stony terrain, but beneficial for all pond construction projects.

The underlay can be easily cut and shaped to fit different pond sizes and liner shapes.

Technical specifications

• Manufacturer: Superfish
• Product type: pond liner underlay
• Size: 5 × 2 m
• Purpose: protection for pond liners
• Features: durable, shock‑absorbing material
• Installation: placed between ground and pond liner