Featured Categories

  • Tools & Machining
  • Shipping, Packaging & Office Supplies
  • Plumbing
  • Safety

Shop Categories

  • Abrasives & Polishers
  • Adhesives & Tapes
  • Electrical Supplies
  • Electronics
  • Fasteners
  • Food Service & Restaurant Supplies
  • Furniture, Linens & Decor
  • Grounds & Outdoor
  • Hardware & Building Materials
  • Heating & Cooling
  • Janitorial & Cleaning Supplies
  • Lab Equipment & Supplies
  • Lighting
  • Material Handling
  • Medical & Personal Care
  • Paint, Coatings & Supplies
  • Plumbing
  • Power Transmission
  • Pumps
  • Raw Materials
  • Safety
  • Shipping, Packaging & Office Supplies
  • Storage & Workspace
  • Test Instruments & Gauges
  • Tools & Machining
  • Vehicle Maintenance
  • Welding, Soldering & Brazing
  • About Us
  • Deals
  • Contact Us
Added to Cart
Skip to Main Content Accessibility Statement
FREE SHIPPING on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
User Headset Icon User Headset Icon Customer Service
Cart Icon
0
Cart Icon
0
Cart
  • Low prices on everyday needs. Shop Zoro Select
  • Don't miss these limited time offers. Shop All Deals
  • Get 30 days to pay with Net 30. Apply Now
  1. Home
  2. /
  3. Test Instruments & Gauges
  4. /
  5. Flow Measuring Instruments

Flow Measuring Instruments (691 items)

Apollo Valves Water Gauge, Pipe Size 1/2 In, MNPT 2010400
Apollo Valves

Water Gauge, Pipe Size 1/2 In, MNPT

Zoro # G1001847
Mfr # 2010400
product price:  $68.39
/ea
Gems Sensors Flow Rate Monitor, Rotor, 20 GPM Max RFO, 155481
Gems Sensors

Flow Rate Monitor, Rotor, 20 GPM Max

Zoro # G2300925
Mfr # RFO, 155481
product price:  $176.99
/ea
Dwyer Instruments Sight flow indicator, 3/4" body, 4.000" L x 2.250" D x 2.563" H (102 x 57 x 65 mm), 1.5 lb (0.7 kg). SFI-100-3/4
Dwyer Instruments

Sight flow indicator, 3/4" body, 4.000" L x 2.250" D x 2.563" H (102 x 57 x 65 mm), 1.5 lb (0.7 kg).

Zoro # G5173944
Mfr # SFI-100-3/4
product price:  $252.99
/ea
Winters Lead-Free Pressure Gauge, +/-3-2-3%, Bl PETM213LF
Winters

Lead-Free Pressure Gauge, +/-3-2-3%, Bl

Zoro # G7490086
Mfr # PETM213LF
product price:  $17.19
/ea
Apollo Valves Water Gauge, Pipe Size 1/2 In, MNPT 2020400
Apollo Valves

Water Gauge, Pipe Size 1/2 In, MNPT

Zoro # G2939517
Mfr # 2020400
product price:  $91.59
/ea
Dwyer Instruments Sight flow indicator, 1" body, 4.375" L x 2.563" D x 2.625" H (111 x 65 x 67 mm), 2.7 lb (1.2 kg). SFI-100-1
Dwyer Instruments

Sight flow indicator, 1" body, 4.375" L x 2.563" D x 2.625" H (111 x 65 x 67 mm), 2.7 lb (1.2 kg).

Zoro # G5175073
Mfr # SFI-100-1
product price:  $291.99
/ea
Gems Sensors Flow Rate Monitor, Rotor, 5 GPM Max RFO, 155421
Gems Sensors

Flow Rate Monitor, Rotor, 5 GPM Max

Zoro # G2808312
Mfr # RFO, 155421
product price:  $187.99
/ea
Dwyer Instruments Sight flow indicator, 1/2" body, 4.000" L x 2.250" D x 2.563" H (102 x 57 x 65 mm), 1.5 lb (0.7 kg). SFI-100-1/2
Dwyer Instruments

Sight flow indicator, 1/2" body, 4.000" L x 2.250" D x 2.563" H (102 x 57 x 65 mm), 1.5 lb (0.7 kg).

Zoro # G5175082
Mfr # SFI-100-1/2
product price:  $251.99
/ea
Apollo Valves Water Gauge, Automatic, 1/2 In, MNPT, Bronze 2435000
Apollo Valves

Water Gauge, Automatic, 1/2 In, MNPT, Bronze

Zoro # G0242855
Mfr # 2435000
product price:  $289.99
/ea
Apollo Valves Water Gauge, Automatic, 1/2 In, MNPT, Bronze 2035000
Apollo Valves

Water Gauge, Automatic, 1/2 In, MNPT, Bronze

Zoro # G3240562
Mfr # 2035000
product price:  $133.99
/ea
Gems Sensors Flow Rate Indicator, Rotor, 20 GPM, 1/2 in. RFI, 155480
Gems Sensors

Flow Rate Indicator, Rotor, 20 GPM, 1/2 in.

Zoro # G2037016
Mfr # RFI, 155480
product price:  $94.49
/ea
Apollo Valves Water Gauge, Pipe Size 1/2 In, MNPT 2010500
Apollo Valves

Water Gauge, Pipe Size 1/2 In, MNPT

Zoro # G2765262
Mfr # 2010500
product price:  $71.59
/ea
Dwyer Instruments Sight flow indicator, 1/2" body, 4.063" L x 2.750" D x 2.563" H (103 x 70 x 65 mm), 2.6 lb (1.2 kg). SFI-300SS-1/2
Dwyer Instruments

Sight flow indicator, 1/2" body, 4.063" L x 2.750" D x 2.563" H (103 x 70 x 65 mm), 2.6 lb (1.2 kg).

Zoro # G5175091
Mfr # SFI-300SS-1/2
product price:  $477.99
/ea
Apollo Valves Water Gauge, Pipe Size 1/2 In, MNPT 2015100
Apollo Valves

Water Gauge, Pipe Size 1/2 In, MNPT

Zoro # G2849646
Mfr # 2015100
product price:  $83.15
/ea
Apollo Valves Water Gauge, Pipe Size 3/4 In, MNPT 2020700
Apollo Valves

Water Gauge, Pipe Size 3/4 In, MNPT

Zoro # G0593284
Mfr # 2020700
product price:  $106.99
/ea
Winters Lead-Free Pressure Gauge, +/-3-2-3%, Bl PETW213LF
Winters

Lead-Free Pressure Gauge, +/-3-2-3%, Bl

Zoro # G6220663
Mfr # PETW213LF
product price:  $14.89
/ea
Dwyer Instruments Sight flow indicator, 1-1/4" body, 4.375" L x 3.125" D x 2.563" H (111 x 79 x 65 mm), 3.0 lb (1.4 kg). SFI-300-1-1/4
Dwyer Instruments

Sight flow indicator, 1-1/4" body, 4.375" L x 3.125" D x 2.563" H (111 x 79 x 65 mm), 3.0 lb (1.4 kg).

Zoro # G7604712
Mfr # SFI-300-1-1/4
product price:  $357.99
/ea
Dwyer Instruments Sight flow indicator, 2" body, 5.688" L x 3.250" D x 3.625" H (144 x 83 x 92 mm), 5.5 lb (2.5 kg). SFI-100-2
Dwyer Instruments

Sight flow indicator, 2" body, 5.688" L x 3.250" D x 3.625" H (144 x 83 x 92 mm), 5.5 lb (2.5 kg).

Zoro # G6155231
Mfr # SFI-100-2
product price:  $533.99
/ea
Dwyer Instruments Sight flow indicator, 1-1/2" body, 5.688" L x 3.250" D x 3.625" H (144 x 83 x 92 mm), 5.5 lb (2.5 kg). SFI-100-1-1/2
Dwyer Instruments

Sight flow indicator, 1-1/2" body, 5.688" L x 3.250" D x 3.625" H (144 x 83 x 92 mm), 5.5 lb (2.5 kg).

Zoro # G7561942
Mfr # SFI-100-1-1/2
product price:  $556.99
/ea
Apollo Valves Water Gauge, Pipe Size 1/2 In, MNPT 2020500
Apollo Valves

Water Gauge, Pipe Size 1/2 In, MNPT

Zoro # G2158396
Mfr # 2020500
product price:  $92.89
/ea
Apollo Valves Water Gauge, Pipe Size 1/2 In, MNPT 2025100
Apollo Valves

Water Gauge, Pipe Size 1/2 In, MNPT

Zoro # G0350357
Mfr # 2025100
product price:  $95.99
/ea
Apollo Valves Water Gauge, Standard, 3/8 In, MNPT, Bronze 2010100
Apollo Valves

Water Gauge, Standard, 3/8 In, MNPT, Bronze

Zoro # G2886816
Mfr # 2010100
product price:  $69.29
/ea
Apollo Valves Water Gauge, Pipe Size 1/2 In, MNPT 2025000
Apollo Valves

Water Gauge, Pipe Size 1/2 In, MNPT

Zoro # G0711742
Mfr # 2025000
product price:  $94.49
/ea
Dwyer Instruments Sight flow indicator, 3/4" body, 4.063" L x 2.750" D x 2.563" H (103 x 70 x 65 mm), 2.6 lb (1.2 kg). SFI-300-3/4
Dwyer Instruments

Sight flow indicator, 3/4" body, 4.063" L x 2.750" D x 2.563" H (103 x 70 x 65 mm), 2.6 lb (1.2 kg).

Zoro # G5175055
Mfr # SFI-300-3/4
product price:  $335.99
/ea
Apollo Valves Water Gauge, Pipe Size 1/2 In, MNPT 2015000
Apollo Valves

Water Gauge, Pipe Size 1/2 In, MNPT

Zoro # G1007237
Mfr # 2015000
product price:  $80.19
/ea
Penberthy Glass Rod Kit, Red Line, 5/8In Dia, 24In L 1LG-24R
Penberthy

Glass Rod Kit, Red Line, 5/8In Dia, 24In L

Zoro # G4298077
Mfr # 1LG-24R
product price:  $100.99
/ea
Penberthy Gagecock, Steel, 3/4 In.OD Glass, PR N7BS
Penberthy

Gagecock, Steel, 3/4 In.OD Glass, PR

Zoro # G4151567
Mfr # N7BS
product price:  $742.99
/pr
Dwyer Instruments Sight flow indicator, 1" body, 4.375" L x 3.125" D x 2.563" H (111 x 79 x 65 mm), 3.0 lb (1.4 kg). SFI-300-1
Dwyer Instruments

Sight flow indicator, 1" body, 4.375" L x 3.125" D x 2.563" H (111 x 79 x 65 mm), 3.0 lb (1.4 kg).

Zoro # G5178442
Mfr # SFI-300-1
product price:  $343.99
/ea
Dwyer Instruments Sight flow indicator, 3/8" body, 3.000" L x 1.813" D x 2.125" H (76 x 46 x 54 mm), 1.1 lb (0.5 kg). SFI-100-3/8
Dwyer Instruments

Sight flow indicator, 3/8" body, 3.000" L x 1.813" D x 2.125" H (76 x 46 x 54 mm), 1.1 lb (0.5 kg).

Zoro # G7556342
Mfr # SFI-100-3/8
product price:  $224.99
/ea
Apollo Valves Water Gauge, Automatic, 1/2 In, MNPT, Bronze 2435100
Apollo Valves

Water Gauge, Automatic, 1/2 In, MNPT, Bronze

Zoro # G3310133
Mfr # 2435100
product price:  $293.99
/ea
Dwyer Instruments Double Sight Flow Indicator, Brnz, 1-1/2In SFI-300-1-1/2
Dwyer Instruments

Double Sight Flow Indicator, Brnz, 1-1/2In

Zoro # G7569737
Mfr # SFI-300-1-1/2
product price:  $737.99
/ea
Dwyer Instruments Sight flow indicator, 3/4" body, 4.063" L x 2.750" D x 2.563" H (103 x 70 x 65 mm), 2.6 lb (1.2 kg). SFI-300SS-3/4
Dwyer Instruments

Sight flow indicator, 3/4" body, 4.063" L x 2.750" D x 2.563" H (103 x 70 x 65 mm), 2.6 lb (1.2 kg).

Zoro # G5175107
Mfr # SFI-300SS-3/4
product price:  $535.99
/ea
Dwyer Instruments Sight flow indicator, 1" body, 4.375" L x 3.125" D x 2.563" H (111 x 79 x 65 mm), 3.0 lb (1.4 kg). SFI-300SS-1
Dwyer Instruments

Sight flow indicator, 1" body, 4.375" L x 3.125" D x 2.563" H (111 x 79 x 65 mm), 3.0 lb (1.4 kg).

Zoro # G7454727
Mfr # SFI-300SS-1
product price:  $618.99
/ea
J.W. Winco GN743.7-14-1/2-NPT-A Oil Sight Glass 8PTK1
J.W. Winco

GN743.7-14-1/2-NPT-A Oil Sight Glass

Zoro # G4712087
Mfr # 8PTK1
product price:  $17.59
/ea
Thrifco Plumbing 100# Water Test Gauge 4402333
Thrifco Plumbing

100# Water Test Gauge

Zoro # G510062687
Mfr # 4402333
product price:  $10.89
/ea
Penberthy Gagecock, Steel, 5/8 In.OD Glass, PR N7AS
Penberthy

Gagecock, Steel, 5/8 In.OD Glass, PR

Zoro # G4205171
Mfr # N7AS
product price:  $726.99
/pr
Flow Measuring Instruments (691 items)
  • 1
    of 20 pages
  • Next
  • Last
How was your search?

About Flow Measuring Instruments

Flow Measuring Instruments are used to measure the rate of flow of liquids, gases, and other substances. This measurement is important in many industries and processes, as it helps ensure that the correct amount of a substance is being used or produced.

Types of Flow Measuring Instruments

There are a variety of different types of Flow Measuring Instruments available. Each type has its own unique features and benefits depending on the application. Some popular types include turbine flowmeters, differential pressure flowmeters, magnetic flowmeters, ultrasonic flowmeters, and variable area meters.

How Flow Measuring Instruments are Made

Flow Measuring Instruments are typically made from materials such as stainless steel or aluminum alloy. They also require components such as transmitters, sensors, valves, switches, and regulators to operate correctly. In addition to these components they may also require software for programming or data analysis.

Industries that use Flow Measuring Instruments

Flow measuring instruments are widely used in many industries including oil & gas production, water treatment plants, chemical processing plants, power plants and manufacturing facilities. Professionals in these fields rely on accurate measurements to ensure efficient operations.

Find the Flow Measuring Instruments You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of flow measuring instruments, along with other tools or equipment to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.

Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

Related Categories

Pressure & Vacuum MeasuringElectrical Testing & MeasuringTemperature & Humidity MeasuringGas & Leak Detection TestingTest & Measurement Products
Data Collection ProductsElectronic & Bench TestingProcess MonitoringTest Instrument & Gauge PartsAir Movement
3/4 sealtitesight flow indicator 2"1/2 flexzilla1" npt sight glass1/2 in mnpt
3/4 in sealtight3/4 in all threadsight flow indicator 1"dwyer flow indicator3/4" curb stop

Sign up and save

Take 10% off your next order when you sign up for Zoro emails. Subscribe now to receive your promo code via email.

Follow us

  • Facebook
  • YouTube
  • LinkedIn
  • Instagram
Every part plays a part

Information

  • About Us
  • Accessibility
  • Careers
  • Inclusion
  • Giving Back
  • Resource Hub
  • Returns
  • Shipping

Shopping

  • Brands
  • Collections
  • My Account
  • Payments
  • Deals
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research
  • Tax Exemption

Zoro, Inc

Connect

Customer service from real people

  • Phone: (855) 289-9676
  • Contact Us

© 2011-2026 Zoro Tools, Inc. All rights reserved.
  • Terms & Conditions
  • Terms of Access
  • Privacy Policy
Zoro, Inc