... solar water heater 1. 100L-1000L 2, CE/PED approved, high quality 3, OEM/ODM 4, Food material SUS304/316L Heat pipe ... collector and the water tank is separated, that makes the system combine with the building perfectly, which will reduce the sightseeing ... valve 8. Expansion vessel connector9. Return circuit connector 10. Wall mounting 11. Expansion vessel: 5L, 8L, 12L, 19L, 20L, 24L 12 ...