1) enamel project vacuum tube solar collector 2) enamel manifold pipe 3) 5 years warranty time

enamel project vacuum tube solar collector

Model: WTO-LCP
Low pressure vacuum tube solar Collector with Porcelain enamel manifold case
1) Manifold case (outer)	Aluminium alloy	Oblong type casing
Manifold pipe (inner)	Titanium steel	Thickness: 1.2mm
Manifold pipe (inner)	Porcelain enamel coating	Thickness:0.5mm
Insulation	Rock wool	Thckness:110mm
2) Solar glass tube	Three target vacuum tube	58/1800mm
3) Frame	Aluminium alloy	Thickness:2mm
4) Inlet/outlet	3/4 inch	Optional: 1 "
5) Packing	Export carton	Wooden for sample
6) Warranty time	5 years

It is better for some area whose water quality is not so good like hard water.