Check the listing for details. NEW MATRIKX CTO PLUS WATER FILTER HAGUE DUAL PRE FILTER CARBON BLOCK 10" PT#.... Condition: New. Listed at 60.00 USD. This MATRIKX CTO Plus carbon filter is perfect for use with the Aqua Optima Evolve filtration system. It's designed to effectively remove chlorine, sediment, and other impurities from your water, providing you with clean and refreshing drinking water. Made with high-quality materials, this filter is built to last and provides long-lasting filtration for your home or office. Compatible with a variety of different filtration systems, this carbon filter is easy to install and maintain. Its compact design makes it easy to store, and its efficiency ensures that you get the most out of each filter. Whether you're looking for a replacement filter or want to improve the quality of your water, this MATRIKX CTO Plus carbon filter is an excellent choice.