Amtrol® 447 In-Line Air Purger, For Use With 700 Series Automatic Air Vents and Extrol® Expansion Tank, 2-1/2 in, 125 psi, Cast Iron, Domestic

  • Country of Origin: US
  • Dimensions: 10 in L x 5 in W x 6 in H
  • Domestic/Import: Domestic
  • Manufacturer Name: Amtrol
  • Specifications: 2-1/2 in, 125 psi
  • Suitable For Use With: 700 Series Automatic Air Vents and Extrol® Expansion Tank
Designed to separate air from water in a closed heating system so that it can be properly vented. Baffles inside the purger cause dissolved air to be separated from the water as it flows through the purger. The elimination of air improves the performance of the system and helps prevent harmful corrosion.
  • Features and More


  • Rugged and compact design with air vent and expansion tank ports
  • Replaces most air scoop-type purgers
  • Separates air from water in closed loop hydronic heating systems and system connection sets the point of no pressure change


  • For Continuously Separates Air From Fluid when System is Operating


  • IAPMO R and T Low Lead Compliant
  • ISO 9001:2008 Registered