The F-42050LN-E Blue White Flow Meter is made from durable acrylic meter body, polished to a clear finish. Direct reading permanent scale. White back reflector for easy reading. 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. Unparalleled quality and construction. MTR2 10-50 GPM ACY 1.5 MPT EP