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Under $20 Flow Meters & Controllers

Shop the best prices on 4,951 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, Pingyaoxianouyuandianzishangwuyouxiangongsi and more. Buy flow meters & controllers online safely with Fruugo, with secure payment and fast shipping to Singapore.

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1 - 32 of 3,200
RAINPOINT Digital Water Flow Meter LCD Outdoor Garden Hose Water Consumption Flow Rate Measure 3/4in
$14.95 Save $15.00 RRP: $29.95
Digital K24 Turbine Oil Fuel Flow Meter Gauge LCD Fuel Flow Meter Chemicals Water Sea Liquid Flow Me
$21.95
2025 Portable Peak Flow Meter for Asthma & Lung Function - Personal PEF Spirometer
$11.95 Save $23.00 RRP: $34.95
Rotary Paddle Flow Switch for Hot Water Heater Pump Flow A
$15.95
Water Flow Sensor RV -Water Heater with Installation Accessories
$8.95 Save $39.00 RRP: $47.95
Mass Air Flow Meter Sensor MAF Sensor for MAZDA-CX5 3 6 PE01-13-215 E5T62271 PE0113215
$14.95 Save $44.05 RRP: $59.00
1/4" Quick Connect Water Flow Sensor Food-grade Switch Flowmeter Fluid Meter Counter 0.2-8L/min for Drinking Fountain
$20.95
LED Auto Display Digital Counter 0-999999 6 Digits Photoelectric Switch Sensor
$18.95 Save $10.00 RRP: $28.95
K24 Digital Turbine Flow Meter for Chemicals Water Fuel, 1" High Precision LCD Sensor
$18.95 Save $55.05 RRP: $74.00
Portable Spirometer Peak Flow Meter Meter Expiratory Flow For Lung Asthma Detector Breath Function M
$9.95 Save $9.00 RRP: $18.95
Water Flow Sensor for Lay Z Spa - Fix E02 Error with Airjet Hydrojet
$19.95 Save $22.00 RRP: $41.95
Water Flow Switch With Stable Performance Liquid Water Flow Sensor Switch G1/2" 25-26
$16.95 Save $17.00 RRP: $33.95
10K Temperature Probe, Stainless Steel Waterproof Thermostat, 2 Meter Cable - 10 to 100 Degrees Celsius
$13.95 Save $5.00 RRP: $18.95
LZB-6M 0-1.5 LPM Flowmeter Gas 8mm Hose Fitting Adjustable Oxygen Flowmeter Regulator Soft Tube for Hospitals Oxygen Bar
$15.95 Save $8.00 RRP: $23.95
FS-11 Water Paddle Flow Switch Female Thread Connecting Flow Sensor 1L/min Flowmeter for Heat Pump Water Heater Air Conditioner
$6.95 Save $3.00 RRP: $9.95
Features: Impact resistance: The product is packed well, free fall from the 50cm height X, Y, Z dire
$20.95 Save $6.00 RRP: $26.95
Ac100-250v Electromechanical Hour Meter Counter-yu
$16.95 Save $9.00 RRP: $25.95
Mass Air Flow Sensor 31342521 for 20082015
$15.95 Save $22.00 RRP: $37.95
Water flows Switches with 1L/ Sensing Simple Installs for Heat Pump Systems SZRH
$18.95 Save $31.00 RRP: $49.95
Water Flow Indicator Measuring Tool Practical 8-blade Impeller Connecter Water unbrand
$7.95 Save $5.00 RRP: $12.95
Compressed Air Connection, Compressed Air Distributor, Compressed Air Switch, with 1/4 Inch Connecti
$14.95 Save $24.00 RRP: $38.95
New Car Air Flow Meter Sensor 226804M500 226804M50A 22680-4M500 22680-4M50A For Nissan
$20.95 Save $31.00 RRP: $51.95
Plastic Flowmeter Tube Water Rotameter Short Tube Liquid Measuring Tool
$21.95 Save $82.05 RRP: $104.00
LZS-25 Plastic Flow Meter Tube Type 300-3000L / H Liquid to Water Rotameter Flow Meter Chemical Ligh
$20.95 Save $6.00 RRP: $26.95
Multifunctional 2 Points PE Pipe Water Flow Sensor Hall Flowmeter G 1/4" Fast Connection Interface
$20.95
Upgrades Flowmeter Counter Liquid Meter Liquid Flowmeter Counter Meter for Water Dispensing System
$19.95
Water Flow Switch FS-10 100V High Precision Level Sensor Adjustable Control Float
$15.95 Save $68.05 RRP: $84.00
Ultech Portable Spiter Flow Meter Meter Expiratory Flow For Lung Asthma Detector Funct Mon For Adult
$21.95
0.01 Precision Two-Wire 4-20MA Current Loop Signal Generator PLC Inst ent-Good
$10.95 Save $14.00 RRP: $24.95
G3 / 4 "Water Sensor Switch 1-30L / Min
$19.95 Save $6.00 RRP: $25.95
Water Cooling Flow Meter RGB Water Flow Meter G1/4inch Flow Meter System for PC Gaming Water Cooling
$21.95 Save $18.00 RRP: $39.95
PEACEFAIR 100A Voltage Current Power Factor Frequency Energy Meter (1*Meter 1* Closed type CT)
$20.95 Save $20.00 RRP: $40.95