1. A product maintaining existing waterway functions and combining ecological functions
- This product facilitates the movement of amphibians and reptiles with ecological aisles to protecting the ecosystem. With the drainage works creating favorable vegetation conditions, this product creates an environment-friendly space where animals and plants co-exist.

2. Maximization of drainage function
- Adopting our company’s patented perforated filter made of PVC material, this product improved the efficiency of drainage function and creates favorable vegetation conditions.

3. Improved structural stability
- It is a standardized factory product with differential settlement prevention bump, and its double reinforcement of bottom slab prevents overturning.

4. Higher quality
- Flexural strength was increased to prevent breakage caused by external pressure. In addition, resistance against freeze and burst in cold winter was also increased.