Amtrol AX-20V-DD Extrol Deep Drawn Expansion Tank Vertical Model (16.5 Gallon Volume)

Note: Image may not represent actual product AX-20V-DD Extrol Deep Drawn Expansion Tank Vertical Model (16.5 Gallon Volume) Deep Drawing the domes doubles the strength of the steel. Half the welds vs. head & shell reducing potential leak paths. Integral diaphragm design features a unique hoop ring and groove configuration that securely locks together the diaphragm and domes. Industry's smallest footprint fits tight mechanical room spaces. In-line models feature end-mounted charging valve for easy air adjustments.