Compact, mounts directly onto existing faucets with no tools in seconds. Switches easily from unfiltered to filtered water, simply pull diverter valve stem to provide cleaner, better tasting drinking and cooking water from faucet taps by reducing lead, lindane and atrazine, cysts, chlorine taste and odor, bad tastes and odors, and sediment. Removes more than 99.95% Cryptosporidium and Giardia cysts, 98.9% lead. Use in homes, cottages, boats, or RVs. Includes faucet adapters and No.FM-15R filter cartridge.Up to 200-gallon life. NSF tested and certified.