Fully Automatic Radiator Bleeder.  Air in radiatorsCAN be eliminated!

Fits standard 1/2" radiator threads.

GUARANTEED NOT TO LEAK

Hot to the top!
• Easy fit: no adjustments necessary no need to drain the system
• Long, leak-free life
• Replaceable cartridge
• Saves energy & reduces fuel bills by keeping radiators air-free and hot to the top!
• Dispenses with the need for radiator bleed keys
• Reduces corrosion and system noise