... : CE approved Heat Pipe Solar Collector (SKI-CA)Product class: Solar CollectorSpecial designed for the Separated solar water heater systems. It' ... s easy to combine with existing water heating systems. This solar collector is of excellent figure, reliable performance, low maintenance, ... , thickness: 30mm to 60mm.Frame: aluminum alloy, thickness: 2mm solar power: Solar Collector(heat pipe & CE Approval)