The Solex DWHX is a preinstalled and leak-tested unit with an integrated double wall heat exchanger for transferring heat from the collector to the storage tank.
Connections DN20 (3/4" female), Flow range 1-13 L/min (0.3 - 3.5 US gal/min)
Solex DWHX 3/4" - Technical Product Brief
Solex DWHX 1" - Technical Product Brief
Solex DWHX - Installation & User Manual
Resol DeltaSol BS Solex Controller
Expansion Tank Kit: 3/4" connection: Staianless steel 3/4" corrugated hose female-female X19.7"/500mm, wall bracket with mounting material. The maximium diameter of tank=17.32"/400mm.