Sentinel R600 Thermal Fluid provides protection for air source heat pump systems against stubborn, limescale, frost and corrosion. If minimum levels are maintained, the product ensures permanent protection which doesn’t need to be replaced. If you’re still unsure about the protection against freezing temperatures, then levels can be checked using the Sentinel FrostCheck Test kit.

Features and benefits:

• Effective frost protection
• Provides effective corrosion and limescale protection for system metals
• Easy to handle
• Doesn’t need to be replaced once added