Specifications: Minimum Water Pressure: 60 PSI Maximum Water Pressure: 100 PSI Optimal Water Temperature: 77°F (25°C) Maximum Water Temperature: 105°F (40°C) Typical Rejection Rate: (1:4.5) Includes: Sediment Cartridge Carbon Cartridge RO Membrane RO Unit Housing with Mounting Bracket Canister Cap Wrench Faucet Connector Installation and Maintenance Guide