Flowmeter Tool, Water Flow Meter 3.5‑24V DC Wide Application Easy Installation Stainless Steel 20-280L/MIN for Irrigation: Amazon.com: Industrial & Scientific
BIOTECH LIQUID FLOW METER
PSG Biotech
Bio-Tech FCH-M-POM-LC AD 6 MM Non Aggressive Liquids Low Flow Flowmeter | Rapid Online
PSG® Biotech to Launch New and Updated Flow-Sensor