We recommend the Security Underlay 1331960 from Ubbink, as it is made of an extremely resistant and material that cannot rot, so it is a perfect protective layer for your pond liner. You should always use a type of textile underneath the pond liner as an addition to the layer of sand to protect the pond liner from sharp stones and roots.
- Material: Rot-resistant synthetic material
- Colour: White
- Dimensions: 5 x 2 m (L x W)
- Density: 200 g / m²