Amtrol #15 Expansion Tank

This Expansion Tank is a MUST HAVE on all Solar Water Heating Systems that use a closed Glycol filled loop. It is pre-charged to the right pressure for HELIATOS GH type Glycol solar water heating systems.  Specifications: Tank Volume                       2 Gallons Diameter                              8" Height                                  12 5/8" Max Accepted Volume     0.9 Gallons Max Pressure                    100 psi Thread                                 1/2" Male Pipe Thread Max Temp                           240°F Precharge                          12 psi Shop RV Kits  Shop Boat Kits