Caleffi 521519AC Thermostatic and Pressure Balanced Mixing Valve

Thermostatic mixing valve delivers precise temperature control for safe, comfortable water in showers, sinks, and appliances. The Caleffi 521519AC thermostatic and pressure balanced mixing valve combines reliability with anti-scald protection for your home plumbing system.

The 3/4" sweat connections and low lead brass construction ensure durable performance, while the included adapter and temperature gauge simplify installation and monitoring. This valve is designed to balance pressure and maintain a consistent mix even when supply temperatures vary.

Designed for peace of mind, its thermostatic mechanism reacts quickly to temperature fluctuations, keeping hot water within a safe range and reducing scald risk.

• 3/4" sweat connections for easy piping integration
• Thermostatic and pressure balanced design for constant, safe temperatures
• Low lead brass construction for durability and compliance
• Includes adapter and temperature gauge for quick setup
• Built-in checks reduce cross-flow and prevent leaks
• Compact, reliable unit ideal for residential plumbing