Aqueon 17771 Mini Bow 2.5 Gallon Desktop Aquarium Kit, Black

TBZFNZXF Glass Tube Rotameter LZB-3WB Flow Meter Industrial Flow Meter(6-60ML-min)

Blue-White U-30150P F300 Flowmeter Vertical Up for 1 1/2" PVC - 20 to 100 GPM

LDI INDUSTRIES F152 1/4-18 THREAD, 3-9/16" OAL, INLINE SIGHT GLASS & FLOW SIGHT 435 MAX PSI, 1/4" THREAD

Ldi Industries Flow Sight

Neo-Pure Inline Liquid Water Flowmeter 1-10 GPM with 3/4" FNPT Connections | Accurate Flow Measurement for Residential, Commercial, and Industrial Applications - Single Unit

Alvinlite Water Liquid Flow Meter,Thread 0.003-4GPM 0.01-1LPM Flowmeter Measuring Flow-Meter Panel Mount Type FlowmeterMeters for Gas Liquid for Water Industrial Field LZQ-3 Rate Gauge High Accuracy

Rola-Chem 570381-S Flowmeter for 4 in. PVC Pipe, Horizontal Installation (Side Mount), 175–500 GPM, 4" PVC/Galv Pipe — Accurate Flow Rate Measurement for Swimming Pools

Blue-White Industries, Ltd. F41000LN16 FLOW METER 2-20 GPM 1 FPT