Spirotherm 3/4 in. Spirovent Jr. Air Eliminator (Threaded)

The 3/4 in. Spirovent Jr. helps reduce oxygen-based corrosion in your boiler system. This replacement part is designed to help eliminate up to 100% of free air and entrained air and up to 99.6% of dissolved air in the system. This part provides a quiet operation and requires minimal to no maintenance.