Amtrol Extrol®, InSight™ Hydronic Expansion Tank, 1/2" MPT, 4.4 Gallon, In-Line

AM30 MFG #: EX30
  • Brand: Amtrol®
  • Pressure Rating: 100 psi
  • Applicable Standard: IAPMO, ISO 9001, PHCC
  • Material: Steel
Amtrol® Hydronic Tank, 4.4 gal Tank, Extrol Expansion Tank, 11 in Dia, 100 psi, Steel
  • 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
  • Helps Reduce Energy Consumption and Reduces System Wear
  • Lead-Free
  • Made in USA


    Projection Welded Air Valve, Steel System Connection, High Strength Steel Shell