The best way to keep your Manitowoc AR-2800 working well and protect your valuable ice machine is to replace the filter cartridge periodically. This high quality carbon block with integrated Siliphos scale inhibitor is the tool you need to reduce maintenance costs and produce clear, quality ice. The Manitowoc Arctic Pure Replacement icemaker Filter Cartridge fits the Manitowoc AR-2800. 1 micron gradient density carbon block reduces a variety of contaminants to give you high quality ice. With its quick change design, filter replacement has never been easier. Siliphos scale inhibitor reduces maintenance-inducing scale buildup.