The EcoPure EPW2F Premium FACT Universal Whole Home Filter is a set of two dark gray/black water filters designed for household use. Made of plastic, these filters use carbon/charcoal and carbon spun fiber filtration methods to provide clean and safe water for your home. Compatible with Aqua Optima Evolve models, these filters are suitable for whole home filtration systems. The EcoPure brand ensures quality and reliability in removing contaminants from your water supply.