详情

Solar vacuum tube:
a) Size:   *7 x 1,**0mm    AL/N/AL or Cu SS-ALN(H)/SS-ALN(L)/ ALN  vacuum tubes
 b) Qty:    *5 /*8 / *0 / *4 / *0 pcs
Temperature insulation layer：
 5.5cm imported polyurethane
Remark:
1, We offer  2% vacuum tubes for free for exchange in case several shattered vacuum tubes during transit.
2.We can produce the solar collector as your requirement.If you have any special requirements,pls feel free to tell us.
3. About the following accessories, if you need, we can offer you, but you should charge it.
Accessories:
a). Assistant  tank for automatic water loading
b). Electrical heater
c). Controller