Blue-White Industries F-45500LHN-12 Flow Meter

Blue-White Industries F-45500LHN-12 Flow Meter is an inline, 3/4-inch MNPT flow meter designed for monitoring low-flow liquids with a 0.5–5.0 GPM (2–20 LPM) range and a 4-inch scale for easy visual reading. The meter body is polysulfone, the float is 316 stainless steel, and the guide rod is 316 SS, with Viton O‑rings (FKM; EPDM optional) and 3/4" MNPT adapters as part of its inline configuration. It tolerates up to 175 psi (12 bar) at 70 °F and reaches up to 212 °F (100 °C) with 0 psi, providing full-scale accuracy of ±4% of full scale; calibration fluid is water with SG 1.0. Weighing about 0.5 lb at shipping, the unit is compact for inline installations in piping systems and is part of Blue-White’s F-450 family of polysulfone flow meters.