The Swift Green Filters SGF-96-46 CTO-S-B commercial filter is a compatible replacement for EV9617-76 filters. Providing fresh, clean, and great tasting drinking water, this high-quality filter reduces CTO, Sediment, Scale, KDF, Bacteriostatic as well as contaminants such as dirt and rust. Swift Green Filters are made with activated carbon that originates from coconut shells, the ultimate source for providing the worldâ€™s best carbon. By combining coconut carbon with our proprietary EPC technology, Swift Green Filters provide superior performance and contaminant removal. Be sure to change filters every 4-6 months.