General description This 42 m² pond liner underlay is designed to provide optimal protection for your pond liner. It safeguards against damage from rocky ground, burrowing animals, and root growth from trees and shrubs. For enhanced durability, it is recommended to use the fleece both underneath and above the pond liner to prevent potential damage caused by swimming activities or high water pressure on sharp stones. Technical specifications Material: Polypropylene (PP) and PES synthetic fibers Weight: 300 g/m² Thickness: 3.5 mm Roll width: 2 m Stamping puncture resistance: 1600 N Color: Gray Manufactured in Germany Geotextile robustness class: 3 (GRK 3) Rot-resistant Metal and needle detected Diffusion open Other information The products from Aquagart are known for their exceptional quality, as they are made from high-quality materials in Germany. For a wide range of garden, pond, and landscaping products, Aquagart offers various options including fencing and wire connectors.