High velocity 18" combination air eliminator and dirt separator.

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Spirovent® remains the world class standard that others attempt to reach. Often copied but never equaled.
University of Arkansas Medical Sciences - Little Rock, AR
High velocity 18" air eliminator on the hot water system, and custom high velocity 30" air eliminator on chilled water system.
Silence is Golden (Yellow) for Berners-Schober
“The pumps are much quieter as is the circulating water
Waukesha Memorial Hospital
The Spirovent was selected and installed to prevent dirt and sediment in the existing system from reaching a new addition and improvements went even beyond that.