01. Black manifold, 2.3mm vacuum tube.
02. Designed with pressure up to 0.8MPa.
03. Easy to use and convenient to install.
04. Can be put in courtyard on roof or balcony.
05. Inlet water hole connects to tap water, outlet hole connects to tap water and outlet hole produces pressure hot water directly.
06. Efficiency: advantage of solar tubes that insulate inner tube from heat loss.
07. Combined with heat transfer efficiency of heat pipe, collector can deliver nice heat output all year round.
08. Designed to be low profile, sitting closed to surface of roof.
09. Tubes are black and so blend in nice with most roof colors.
10. Heat pipe has special principle, function and no water in pipe.
11. (Series: 5818-24, 5818-18, 5818-16).

Specifications:
01. Manifold materials:
a. Inner: copper header;
b. Outer: aluminum painted un-oxygen layer.
02. Insulation: Rockwool.