20 tube solar panel - high efficiency 47mm Ø double wall evacuated tube solar collector. includes: 20 bottom rail mounted tube cups, 1 tube of heat conducting paste, 2 side rails, 1 bottom rail and 1 set of nuts, bolts and washers for assembly

Panel dims: 1660 x 1500 x 130mm Weight: 49kgs

Panel Area: 2.49m2 Aperture Area: 1.747m2

Tube Lenth: 1.5m

Width of absorber (internal glass tube): 37mm

Casing Material: Stainless Steel Filling Volume: 1.1ltr

Width of Entry/Exit Pipe: 22mm

Thickness of Collector insulating material: 60mm

Heat Transfer Medium: Water mixed with 40% Navitron Glycol antifreeze