Capacity: Varies according to degree of acidity and alkalinity of water Service Flow Rate: Maximum 0.5 gpm (1.9 Lpm) Pressure Requirements: 10 – 125 psi (0.7 – 8.6 bar), non-shock Temperature: 35 – 100°F (2 – 38°C) Electrical Connection: None required Contents: Granules of magnesium oxide; will increase the hardness of water. Application: Problem solving and special application cartridge for extraordinary water conditions