The Follett 00978973 Replacement Primary Cartridge is an essential component for maintaining the efficiency and performance of the Follett High Capacity Water Filter System (00978957). Designed specifically to handle a filtration capacity of 15,000 gallons (56,781 liters), this replacement cartridge is vital for ensuring the delivery of high-quality water in various industrial and commercial settings. Packaged in a carton containing six cartridges, it provides a reliable and efficient solution for businesses that require consistent and large volumes of purified water. This product is particularly beneficial for industries such as hospitality, healthcare, and food service, where water quality is critical for operational success and compliance with health standards. The Follett 00978973 cartridge is engineered to support the high demands of these sectors by offering extended usage between replacements, thereby minimizing maintenance interruptions. Its tailored compatibility with the 00978957 system underscores its significance as a specialized tool for those seeking to maintain optimal water filtration performance in high-capacity environments.