Geomembranes have become increasingly environmentally friendly, efficient, and durable as technology has advanced. BTL's line of geomembranes is proven to be chemically and leach-resistant. This means the material won't break down and release toxins into the environment, even after long periods of use.
All of BTL's products have also been certified NSF-61. This is the highest rating for food and water safety that a liner can achieve, and makes it suitable for holding water intended for drinking and human-use.