AMTROL - Extrol Hydronic Expansion Tanks

Product Overview

 Strongest Tank Design Featuring Deep Drawn Steel and Multi-Dome Construction.
 Thickest Diaphragm – Heavy Duty Butyl/EPDM.
 Projection Welded Air Stem to Help Eliminate Leaks.
 Patented InSight™ Service Indicator Cap.
 In-Line Models Available in 2.0 through 14.0 Gallons
 Freestanding Models Available in 14 through 86 Gallons.
 Combination Packages Include an Air Purger (1″ Model 443 or 1-¼” Model 444) and an Air Vent (Model 700-C).