Amtrol Extrol® Hydronic Expansion Tank, 1" FPT, 32 Gallon, Vertical, Stand

  • Brand: Amtrol®
  • Pressure Rating: 100 psi
  • Applicable Standard: IAPMO, ISO 9001, PHCC
  • Application: Commercial, Residential
Amtrol designed and patented the first Extrol diaphragm expansion tank in 1954 to control system pressure and help reduce energy consumption in heating and chilled water systems. Over six decades later, Extrol is still the worlds leading expansion tank brand, setting the standard for quality, reliability and innovation.
  • Features and More


  • Strongest Tank Design Featuring Deep Drawn Steel and Multi-Dome Construction
  • Thickest Diaphragm
  • Projection Welded Air Stem to Help Eliminate Leaks
  • Patent Pending Insight Service Indicator Cap
  • Accepts Expanded Water as System Temperature Rises to Reduce Pressure Build-Up
  • Lead-Free
  • Made in USA


    Projection Welded Air Valve, Steel System Connection, Steel Shell