Best Trendnet Flow Switches in 2026

Daisy
Last Updated: Feb 7, 2026

At a Glance: Our Top Picks for Trendnet Flow Switches

Flow Switch Assembly GLX-FLO-RP for Hayward Goldline Aquarite Salt System, Pool Flow Sensor Suitable for Hayward Salt Cell and Chlorine Generator, with 15-Foot Cable Flow Switch
#TOP1
Flow Switch Assembly Glx-Flo-Rp For Hayward Goldline Aquarite
9.6
PM SCORE
DIGITEN FS-C02 G3/4" BSP Male Thread Brass Water Flow Switch 1-30L/min, 0-2A/ 0-220V(AC or DC)
#TOP2
Digiten Fs-C02 G3/4" Bsp Male Thread Brass Water
8.8
PM SCORE
General Pump 100975 Flow Switch, 12.0 GPM, 5000 psi
#TOP3
General Pump 100975 Flow Switch, 12.0 Gpm, 5000
7.9
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Trendnet Flow Switches of 2026

Market Overview
Trendnet Flow Switches Reviewed
  • Reviews Analyzed: 758 Items
  • PM Avg. Rating: 4.4 / 10
16 Products Evaluated
  • Highest Price: $614.19
  • Lowest Price: $14.99
  • Avg. Price: $163.60

Flow Switch Assembly Glx-Flo-Rp For Hayward Goldline Aquarite Salt System, Pool Flow Sensor Suitable For Hayward Salt Cell And Chlorine Generator, With 15-Foot Cable Flow Switch

COOOUDS
GLX-FLO-RP
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
beezoom 9.92

Features

【Compatible】 This GLX-FLO-RP flow switch can compatible with all the salt chlorine generator systems of Hayward and Goldline. GLX-FLO-RP flow switch replacement can be used with Hayward Goldline Salt Chlorination Turbo Cell.

【Suitable Models】The swimming pool flow switch suitable for almost all Hayward Goldline salty system,Hayward part GLX-FLO-RP can replace GLXFLORP, GLX-FLO-HP, Q-12DS-C2, OPT-F/S. Suitable for : Pro Logic, Mineral Springs, Mineral Springs MS10/MS11, Aqua Plus, Aqua Rite XL, Aqua Logic, Aqua Rite Pro, Aqua Rite compatible, Aqua Plus, H40, SwimPurePlus, SplashCLEAR, SmartPure, Splash SP-40...

【Accessories】 The water flow sensor hayward GLX-FLO-RP has a 15-Foot Cable. One end is a standard Phone Jack connection and it has a circle gasket and a round of tape.

【Easy to install】 Hayward flow switch assembly has fewer integral parts and is easy to install. Just insert the two ends of the flow switch with cable into the correspondingly correct positions. Unplug existing (old) flow sensor, wrap enough tape and screw the switch into Run pump, do not overtighten it. It may only take 2 minutes to install.

【Services】 We provide 1 year of quality service and consultation services, if you have any questions, please E-mail us, we will reply within 12 hours.

Digiten Fs-C02 G3/4" Bsp Male Thread Brass Water Flow Switch 1-30L/Min, 0-2A/ 0-220V(Ac Or Dc)

DIGITEN
FS-C02ZJ
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SENSTREE 9.54

Features

🌟🌊【Safe and Reliable】This flow sensor switch is made of brass, all materials are in line with ROHS testing standards. It's a safety device that shuts off the current to the device (heaters, pumps, etc.) when it senses no water flow.When connecting the load, please add a relay.

🌟💧【Thread type: 3/4" BSP Male Thread】 The flow sensor `s male thread external diameter: 25.85mm.It is fit in NPT Thread if you connect them with teflon

🌟🌊 【Easy to install 】Our flow sensor is waterproof, heat resistance, pressurresistance, cold resistance, small size, stable and reliable.

🌟💧 【Specification】Operation voltage of this flow sensor is : 0-220V(AC or DC), Working current: 0-2A, max working pressure: 1.75 MPa. Flow range: 1-30L/min.

🌟🌊 【Widely Applications 】This water flow sensor switch can be use for Water heaters, pumps, hot tub, boiler, water dispensers, coffee machines, hot card machines, steam equipment, water system, the campus card sales, selling self-help water systems, water treatment equipment, cooling systems, mechanical equipment, instrumentation, pharmaceutical equipment.

General Pump 100975 Flow Switch, 12.0 Gpm, 5000 Psi

GENERAL PUMP
100975
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Disilia 5.20

Features

Max Switch Voltage: 250 VAC

Max Switching Current: 5 AMPS

Resistance with Leads: 30 OHM

Electrical Service Life: 200,000 Cycles

Mechanical Service Life: 10,000,000 Cycles

Mcdonnell & Miller Fs4-3 General Purpose Liquid Flow Switch

MCDONNELL & MILLER
114400
1.00 X 1.00 X 1.00 Inches
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Maintak 9.77

Features

For starting or stopping electrically operated equipment such as signal lights, alarms, motors, automatic burners, metering devices and others

1" NPT

Minimum/maximum temperature: 32 degrees F/300 degrees F

Sensitivity adjusting screw makes flow adjustment easy

Four stainless steel paddles included: 1", 2", 3" & 6" (25, 50, 80, & 150mm)

Johnson Controls F261Mah-V01C Flow Switch

JOHNSON CONTROLS
F261MAH-V01C
12.25 X 4.50 X 4.50 inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SUPPLIESPLUSTORE 6.36

Features

Type 3R (NEMA) or Type 4 (NEMA) enclosure allows use in indoor or outdoor applications

Viton diaphragms allow use in fluid lines carrying chlorinated water, treated water, or other nonhazardous fluids

low-flow operation on low-flow models actuates switch with less than 1.0 GPM (3.8 L/min) flow for water applications or 9.0 GPM (34.1 L/min) flow for steam applications

Maximum fluid pressure of 290 psig (20 bar) permits use in a wide range of pressure flow conditions

Trane Switch, Flow Sensor Thermal Disp. 24 Va

TRANE
SWT03335
3.45 X 2.55 X 2.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

This is a genuine OEM (Original Equipment Manufacturer) part.

Use genuine OEM parts for safety reliability and performance

Ywbl-Wh Hfs-25 1Inch Thread Paddle Type Liquid Water Flow Paddle Control Switch Spt Ac220V 15A With Paddles, Flow Switch

YWBL-WH
YWBL-WH5BT8C4IF2K1271
0.39 X 0.39 X 0.39 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Partgry-T 9.71

Features

Used in water treatment systems, central air conditioning, water‑cooled units and other fields.

Suitable for water, ethylene glycol and any other liquid that has no corrosive effect on brass and phosphor bronze and has no effect on sealing performance.

The flow switch has the characteristics of high sensitivity and strong durability, practical for use.

Medium temperature is 0‑60 ℃, contact life is about 100,000 times, rated pressure is 10bar.

Made of high quality brass material, high hardness and strength, wear‑resistant and durable.

W.e. Anderson® Vane Flow Switch, Fs-2, 1" Mnpt, Low Cost, Field Adjustable Set Point & Paddle

DWYER
FS-2
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Blackhawk Supply 5.30

Features

Wetted Materials: Bellow: Tin-bronze; Vane: Stainless steel; Body: Forged brass

Temperature Limits: 230°F (110°C)

Pressure Limits: 145 psig (10 bar)

Switch Type: SPDT snap switch

Enclosure Rating: NEMA 4 (IP64)

Hfs-25 1"/Dn25 Flow Switch,Liquid Water Flow Paddle Control Switch Spdt Contacts 6-380V

YWBL-WH
YWBL-WHY7WXQC2410
3.35 X 2.56 X 4.92 Inches
1.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Partgry-T 9.71

Features

This flow switch is made of high quality stainless steel, corrosion resistant and long service life.

This product is used to measure the fluid dynamics of fluids passing through pipes, such as water, ethylene diluents, glycols and other liquids that do not corrode copper.

This water flow switch is suitable for water treatment systems, central air conditioning, water cooling units, fire protection systems and other fields.

Flow switches are typically used in locations that require interlocking or "cut" protection.

When the flow exceeds the set value, the fluid drives the blade and the microswitch, and the SPDT contact can connect the circuit and disconnect other circuits.

Hilitand 1/2" Water Flow Switch, Hfs-15 Adjustable Thread Double Throw Spdt 220Vac 15A Water Flow Control 1.0Mpa

HILITAND
HILITANDP7TUY5R328
3.35 X 2.56 X 4.92 Inches
0.90 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
tanus 9.70

Features

HIGH QUALITY: It adopts premium material, with strong temperature adaptability of 0~ 120, and can withstand high pressure of 1.0Mpa.

ADJUSTABLE: The flow control value is adjustable and the action repetition point is stable.

MEASURE LIQUID: The product is used to measure the dynamic state of the liquid flowing through the pipeline, such as: water, ethylene, ethylene glycol and other liquids that have no corrosive effect on copper

APPLICATION: It is application for water treatment system, central air conditioning, water cooling unit, fire protection system and other fields.

Mcdonnell & Miller, Fs8-W, Flow Switch, 1 In Nema

MCDONNELL & MILLER
FS8-W
3.25 X 3.25 X 8.38 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
The Portland Group 9.89

Features

package height :26.67 cm

package length :10.795 cm

package width :10.795 cm

country of origin :United States

Mcdonnell & Miller Fs251 General Purpose Flow Switch, 1" Replaces Fs4-3

MCDONNELL & MILLER
FS251
8.40 X 4.10 X 3.60 Inches
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Voomi Supply 9.07

Features

Product Type :Electronic Component

Package Dimensions :9.1 Cm L X10.4 Cm W X21.3 Cm H

Country Of Origin :United States

Package Weight :1.0Lbs

Liquid Flow Switch, Shuttle, Spdt, 20Va

GEMS SENSORS
ARALL-70460569
3.90 X 2.60 X 5.00 Inches
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Neobits_ 8.86

Dwyer Flotect Series V6 Mini-Size Flow Switch, Brass Upper And Lower Housing, Dpdt Snap Switch, 1" Npt Process Connection, Brass Tee

DWYER
V6EPB-B-D-3-B
0.01 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Data Alchemy 8.60

Features

Monitor flow in 1/2" to 2" pipe

Explosion-proof

Leak proof lower body machined from bar stock

Weatherproof

Electrical assembly can be easily replaced without removing the unit from the installation so that the process does not have to be shut down

Raypak Flow Switch, 1 In, 24V

CAI - RAYPAK
007142F
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MyPoolYard 9.73

Water Flow Switch, Lkb-01D Water Flow Switch 250V 15A Rc1 "Two Way Water Flow Switch Ip54 Flow Switch Flow Valve 1.0Mpa Spdt Contacts For Fire Safety Air Conditioners

THINCOL
THINCOLZ4PNH93AFT
3.35 X 2.56 X 4.96 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Thincol33 9.72

Features

It is used to measure the dynamic state of the liquid flowing through the pipeline, such as: water, ethylene, ethylene glycol and other liquids that have no corrosive effect on copper.

When the flow rate of liquid exceeds or falls below the set flow rate, the SPDT contacts can turn on one circuit and cut off the other at the same time. The flow switch is usually used in places requiring interlocking or

Repeatability error is about 2.5%, ensure high stability of products.

IP54 protection level, more safer to use.

Perfect for water treatment system, central air conditioning, water cooling unit.

Top 10 flow switches Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Mcdonnell & Miller 3
Dwyer 2
Ywbl-Wh 2
Cai - Raypak 1
Cooouds 1
Digiten 1
Gems Sensors 1
General Pump 1
Hilitand 1
Johnson Controls 1

Top 10 flow switches Brands Pie Chart


We've carried out a comprehensive analysis of 758 reviews on flow switches, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select flow switches priced around $163.60, with top brands including cooouds and thincol and dwyer

Our team of expert editors reviewed these high-quality items and handpicked the top 16 flow switches for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include beezoom and thincol33 and blackhawk supply .

We are dedicated to assisting our users in finding the right switches Products based on their needs, saving them considerable time when choosing which flow switches to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.