Keep your commercial water filtration system working at its best with the 3M HF40-S Replacement Water Filter Cartridge. This high-quality cartridge is designed to fit perfectly in your system, removing scaling and other impurities to provide clean, clear water for your bar or restaurant. With a service flow rate of 2.1 gallons per minute, this filter keeps up with even the busiest of establishments. The HF40-S is compatible with a range of water filter cartridges, making it easy to find the perfect fit for your needs.