The F-42025LK-16 Blue White Flow Meter is made from tough acrylic meter body, polished to a clear finish. Direct reading permanent scale. Features easy to read white back reflector. High grade Viton o-ring seals. (Optional K-series hastelloy C-276). Acceptable in direct sunlight applications. Available OEM options: Private labeling, custom calibrations, custom materials. A great value - top quality at unbelievable prices. MTR2 5-25 GPM ACY 1.0 FPT HAST