Sunpower - Coil Solar Water Heater (SPHE)

Inner tank: 0.5mm food grade stainless steel304. Outer tank: 0.4mm stainless steel. Insulation: 50-55mm polyurethane CFC-free. Supporting Frame: 1.2 stainless steel. Vacuum tube: ALN/ALN Absorber with heat pipe, , glass thickness 1.6mm. Reflector is available. Capacity: 150 200 250 300L or other. Copper coil and SS304 coil available.