The HGT-15 from Calefactio is an Expansion Tank (2.1 gal). It's a #15 bladder-type expansion tank designed for use in closed-loop hydronic and radiant heating systems. Direct replacement for Amtrol Extrol #15, B&G HFT-15 and Watts ETX-15 models.
|Expansion tank volume:||2.1 gallons|
|Factory pre-charge pressure:||12 psi|
|Max. Operating Pressure:||115 psi|
|Max. operating temperature:||240°F|
|System connection:||1/2" male threaded|