... . The standards of vacuum tubes with heat pipe: 14, 16, 18, 20, 24, 30 tubes .9.Water capacity: 150L, 200L, 250L ... /121.26Ø47mm1500mm1270233/566OS-SP 47/181.8018110164/400OS-SP 47/202.1020125130/380OS-SP 47/303.1530180103/251OS-SP 58/121.73Ø58mm1800mm12110127 ... /309OS-SP 58/182.5718150100/242OS ...