Amazon.com: LZB-3 Glass Tube Liquid Flowmeter, Panel Type Water Flow Meter Adjustable Black Knob Water Flow Meter Panel Mount Type Flowmeter(10-100mL/min) : Industrial & Scientific
Series 1200 Variable Area Flowmeter (three versions) - MPB Industries
F801 GLASS TUBE FLOW METER FLANGE CONNECTION
VASAFA20 glass tube in line flow meters
Encased Glass Tube Panel Mount Flow Meter with Valve, Teflon PTFE, PTCFE 3/8" FNPT Adapter, Valve
Malema, a PSG brand. 6001 & 6002 series glass tube variable area flow meters
LZB-15(D) Rotameter Water Flow Meter Material Glass Stainless Steel Plastic Transparent Pipeline Flowmeter Liquid Flow Rate Gauge(5-50mL/H) - Amazon.com