The F-42050LK Blue White Flow Meter is made from durable machined acrylic meter body, polished to a clear finish. Direct reading permanent scale. Features easy to read white back reflector. Viton o-ring seals. (Optional K-series hastelloy C-276). Can be used in direct sunlight. Available OEM options: Private labeling, custom calibrations, custom materials. Guaranteed to get the job done and then some. MTR2 10-50 GPM ACY 1.5MPT HAST