water level meter 1) Material: casting aluminium 2) Size:16"/40CM,20"/50CM,24"/60CM 3) With three vials, one horizontal, one water level meter1 ... ) Material: casting aluminium 2) Size:16"/40CM,20"/50CM,24"/60CM,32"/80CM,40 ... , Green, Blue etc.7) Delivery Lead time: 30-45 days water level meter