Purchase Qty. Reference FOB Price
100-599 Pieces US$4.00
600-2,499 Pieces US$3.50
2,500+ Pieces US$2.20
Product Description
SOLAR WATER HEATER ACCESSORY: SOLAR VACUUM TUBE Solar vacuum tube is the core parts of solar water heater. It absorbs solar energy converting it into heat for hot water heating. Solar vacuum tubes have already been used more than 20 years in China. Each solar evacuated tube consists of two ...