The Eco-Pur™ has undergone rigorous design standards and extensive laboratory and field testing to ensure the highest levels of quality and performance.
The filter media is made up of Synthetic Micro Glass, with a micron rating of 3. A 94% efficiency. Each pass provides 33% efficient water removal. Only use the green OPS filters with your OPS-1 Eco Pur system, other filters may void your OPS warranty.