Features & Benefits
- Open, highly aerobic 3-dimensional structure for healthy water conditions
- Choice of densities allow transition from mechanical to biological filtration
- Excellent surface area per sq. ft. with good adhesion of nitrifying bacteria
- Very resistant to plugging and easy cleaning
- Non-toxic to the environment, versatile, and durable
- Lasts for many years- 6+ (2-5 times longer than ANY other mat on the market!)