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Under $20 Flow Meters & Controllers

Shop the best prices on 2,029 great value under $20 flow meters & controllers. Shopping for flow meters & controllers is easy with Fruugo, with SALE discounts, offers and savings on Ydcy, Asiv, Ibuyke and more. Buy flow meters & controllers online safely with Fruugo, with secure payment and fast shipping to New Zealand.

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1 - 32 of 2,029
Portable Spirometer Peak Flow Meter Meter Expiratory Flow For Lung Asthma Detector Breath Function Monitor For Adult
$19.95 Save $49.05 RRP: $69.00
for Lay Z Spa Water Flow Sensor airjet hydrojet fix E02 Code, Flow Sensor FIX E02 for Spa Lay Z AirJet hwy
$21.95
Portable Spirometer Peak Flow Meter Meter Expiratory Flow For Lung Asthma Detector Breath Function M
$13.95 Save $13.00 RRP: $26.95
Heat pump water switches with 1L flow sensing
$10.95 Save $93.05 RRP: $104.00
2025 New Protable Personal Spirometer Peak Flow - Expiratory Flow Meter - Spirometry Lung Function
$19.95 Save $3.00 RRP: $22.95
MAF Mass Air Flow Sensor Meter for Ford GALAXY S-MAX TRANSIT 2006
$14.95 Save $7.00 RRP: $21.95
Water Flow Indicator Measuring Tool Practical 8-blade Impeller Connecter Water unbrand
$10.95 Save $7.00 RRP: $17.95
Compressed Air Connection, Compressed Air Distributor, Compressed Air Switch, with 1/4 Inch Connecti
$20.95 Save $38.05 RRP: $59.00
2025 New Protable Personal Spirometer Peak Flow - Expiratory Flow Meter - Spirometry Lung Function
$16.95 Save $62.05 RRP: $79.00
3pcs Water Display Indicator for Indoor Potted Plants Practical Water Level Gauge with Easy to Use Design for Home Gardening and Greenhouse Use
$18.95 Save $7.00 RRP: $25.95
Water Flow Switch Female Thread Connecting Flow Sensor Controller Durable - YX
$20.95 Save $13.00 RRP: $33.95
0.1-1.5lpm 1.5l Oxygen Flow Meter Flowmeter With Control Valve For Oxygen Air Gas
$18.95 Save $30.00 RRP: $48.95
6 Impeller 3 Ways Flow Meter Indicator for PC Water Cooling System G1/4 Thread
$15.95
PM2A Half-Circled Water Flow Meter Computer Cooling Half-Circled Flowmeter-Good
$14.95 Save $18.00 RRP: $32.95
Regulator Flowmeter Argon Argon Gas Flow Meter Carbon Dioxide Flow Indicator Air Flow Indicator
$21.95 Save $52.05 RRP: $74.00
DC3.3V-5V Water Level Sensor Pipeline Liquid Level Detection Plastic Float Switch Part Number Indicator 3.5-5mm
$12.95 Save $6.00 RRP: $18.95
Welding Pressure Gauge Argon Co2 Mig Tig- Flow Meter Regulator For Industrial
$20.95 Save $31.00 RRP: $51.95
1Set for -040 Controller 3D Sensor Analog Thumb Stick Caps
$15.95 Save $2.00 RRP: $17.95
12V Electronic Controller Undervoltage Protection Controller
$20.95 Save $4.00 RRP: $24.95
G1/2 inch Water Flow Hall Sensor Switch Flow Meter for Industrial
$18.95 Save $4.00 RRP: $22.95
1-60L/Min DC 5-24V Hall Effect Water Flow Sensor Counter Meter FS300A hwy
$20.95
DN25 FS400A G1inch Water Flow Sensor Hall Flowmeter Meter
$19.95 Save $4.00 RRP: $23.95
for Lay Z Spa Water Flow Sensor airjet hydrojet fix E02 Code, Flow Sensor FIX E02 for Spa Lay Z AirJet hwy
$21.95
Water Flow Sensor airjet hydrojet for Lay Z Spa fix E02 Code SZRH AF-
$21.95 Save $42.05 RRP: $64.00
Digital Load Cell Weight Sensor,4Sets 5KG Load Cell HX711 AD
$19.95 Save $23.00 RRP: $42.95
Water Flow Switch FS-10 100V High Precision Level Sensor
$11.95 Save $6.00 RRP: $17.95
26mm 3/4" PT Thread Connector 120W Pump Water Flow Sensor SwitchCopper Tone Yellow SZRH
$18.95 Save $40.05 RRP: $59.00
1Pcs Water Flow Sensor DN25 DC3.5-24V 1 Inch 2-100L/Min Hall Flowmeter Heat Pump Water Heater Flow-Good
$17.95 Save $15.00 RRP: $32.95
12V Electronic Controller Undervoltage Protection Controller
$17.95 Save $56.05 RRP: $74.00
PM2A Half-Circled Water Flow Meter Computer Cooling Half-Circled Flowmeter
$18.95 Save $50.05 RRP: $69.00
0.1-1.5LPM 1.5L Oxygen Flow Meter Flowmeter with Control Valve for Oxygen Air Gas
$17.95 Save $51.05 RRP: $69.00
0.1 - 1.5LPM oxygen flow meter with control valve for oxygen, air, or gas
$17.95 Save $51.05 RRP: $69.00