For Use With For Use With |
---|
|
Connection Location Connection Location |
---|
![]() | Bottom | ![]() | Center Back |
Measures Measures |
---|
|
Display Type Display Type |
---|
|
|
Case Material Case Material |
---|
|
Accuracy Scale Accuracy Scale |
---|
|
Maximum Pressure, psi Maximum Pressure, psi |
---|
|
|
|
Connection Style Connection Style |
---|
![]() |
Threaded |
![]() |
Barbed |
![]() |
Compression |
Connection Material Connection Material |
---|
|
Maximum Process Temperature Maximum ProcessTemperature |
---|
|
|
Accuracy Grade Accuracy Grade |
---|
|
|
Maximum Environment Temperature Maximum EnvironmentTemperature |
---|
|
|
Minimum Pressure , psi Minimum Pressure , psi |
---|
|
|
|
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
---|
|
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
---|
|
About Pressure Gauges
More
About Pipe Size
More
High-Accuracy Low-Pressure Gauges






Measure small pressure changes in ventilation systems, hydraulic applications, and other critical processes with these high-accuracy gauges. Mount them with the dial face upright.
Gauges with 304 stainless steel case or polyester plastic case have better corrosion resistance than gauges with steel case.
Gauges with safety case blow out in the back under excess pressure, protecting the operator in front.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
- Accuracy: ±1.5% Full Scale (Not Graded)
Available Pressure Gauges | ||
---|---|---|
Pressure Range, psi | Graduation Marks, psi | Numeric Increments, psi |
0 to 3 | 0.05 | 0.5 |
0 to 5 | 0.1 | 1 |
0 to 10 | 0.2 | 2 |
Bottom Connection | Center Back Connection | ||||||||
---|---|---|---|---|---|---|---|---|---|
Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Case Color | Mounting Orientation | Each | Each | ||
NPT Male | |||||||||
2 1/2" | 1/4 | 0° to 140° | 0° to 140° | Black | Upright | 0000000 | 000000 | 0000000 | 000000 |
NPT Male with Calibration Certificate Traceable to NIST | |||||||||
2 1/2" | 1/4 | 0° to 140° | 0° to 140° | Black | Upright | 0000000 | 000000 | 0000000 | 000000 |
- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
- Accuracy: ±1.5% Full Scale (Not Graded)
Available Pressure Gauges | ||
---|---|---|
Pressure Range, in. of H₂O | Graduation Marks, in. of H₂O | Numeric Increments, in. of H₂O |
0 to 10 | 0.2 | 2 |
0 to 15 | 0.2 | 3 |
0 to 30 | 0.5 | 5 |
0 to 60 | 1 | 10 |
0 to 100 | 2 | 20 |
0 to 160 | 4 | 40 |
0 to 200 | 4 | 40 |
Bottom Connection | Center Back Connection | ||||||||
---|---|---|---|---|---|---|---|---|---|
Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Case Color | Mounting Orientation | Each | Each | ||
NPT Male | |||||||||
2 1/2" | 1/4 | 0° to 140° | 0° to 140° | Black | Upright | 0000000 | 000000 | 0000000 | 000000 |
NPT Male with Calibration Certificate Traceable to NIST | |||||||||
2 1/2" | 1/4 | 0° to 140° | 0° to 140° | Black | Upright | 0000000 | 000000 | 0000000 | 000000 |
- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
- Accuracy: ±1.5% Full Scale (Not Graded)
Available Pressure Gauges | ||
---|---|---|
Pressure Range, oz./in.2 | Graduation Marks, oz./in.2 | Numeric Increments, oz./in.2 |
0 to 10 | 0.2 | 2 |
0 to 15 | 0.2 | 3 |
0 to 30 | 0.5 | 5 |
0 to 60 | 1 | 10 |
0 to 100 | 2 | 20 |
0 to 160 | 4 | 40 |
Bottom Connection | Center Back Connection | ||||||||
---|---|---|---|---|---|---|---|---|---|
Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Case Color | Mounting Orientation | Each | Each | ||
NPT Male | |||||||||
2 1/2" | 1/4 | 0° to 140° | 0° to 140° | Black | Upright | 0000000 | 000000 | 0000000 | 000000 |
NPT Male with Calibration Certificate Traceable to NIST | |||||||||
2 1/2" | 1/4 | 0° to 140° | 0° to 140° | Black | Upright | 0000000 | 000000 | 0000000 | 000000 |
- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
- Accuracy: ±1% Full Scale (Grade 1A)
Available Pressure Gauges | ||
---|---|---|
Pressure Range, psi | Graduation Marks, psi | Numeric Increments, psi |
0 to 3 | 0.05 | 0.5 |
0 to 5 | 0.1 | 1 |
0 to 10 | 0.2 | 2 |
Bottom Connection | ||||||
---|---|---|---|---|---|---|
Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Mounting Orientation | Each | |
NPT Male | ||||||
4" | 1/4 | 0° to 140° | 0° to 140° | Upright | 000000 | 0000000 |
- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
- Accuracy: ±1% Full Scale (Grade 1A)
Available Pressure Gauges | ||
---|---|---|
Pressure Range, in. of H₂O | Graduation Marks, in. of H₂O | Numeric Increments, in. of H₂O |
0 to 10 | 0.2 | 2 |
0 to 15 | 0.2 | 3 |
0 to 30 | 0.5 | 5 |
0 to 60 | 1 | 10 |
0 to 100 | 2 | 20 |
0 to 160 | 2 | 20 |
0 to 200 | 4 | 40 |
Bottom Connection | ||||||
---|---|---|---|---|---|---|
Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Mounting Orientation | Each | |
NPT Male | ||||||
4" | 1/4 | 0° to 140° | 0° to 140° | Upright | 000000 | 0000000 |
- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
- Accuracy: ±1% Full Scale (Grade 1A)
Available Pressure Gauges | ||
---|---|---|
Pressure Range, oz./in.2 | Graduation Marks, oz./in.2 | Numeric Increments, oz./in.2 |
0 to 10 | 0.2 | 2 |
0 to 15 | 0.2 | 3 |
0 to 30 | 0.5 | 5 |
0 to 60 | 1 | 10 |
Bottom Connection | ||||||
---|---|---|---|---|---|---|
Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Mounting Orientation | Each | |
NPT Male | ||||||
4" | 1/4 | 0° to 140° | 0° to 140° | Upright | 000000 | 0000000 |
- For Use With: Air, Argon, Nitrogen, and Natural Gas
- Accuracy: ±1% Mid Scale (Grade A)
Available Pressure Ranges | |||||
---|---|---|---|---|---|
Pressure Range | Graduation Marks | Numeric Increments | |||
psi | in. of Hg | psi | in. of Hg | psi | in. of Hg |
0 to 5 | 0 to 10 | 0.05 | 0.1 | 0.5 | 1 |
0 to 8 | 0 to 16 | 0.1 | 0.2 | 1 | 2 |
0 to 10 | 0 to 20 | 0.1 | 0.2 | 1 | 2 |
Mounting | Bottom Connection (Flange Mount) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Case Color | Orientation | Fasteners Included | Hole Dia. | No. of Holes | Features | Each | |
NPT Male | |||||||||||
4 1/2" | 1/4 | 0° to 140° | -40° to 210° | Black | Upright | No | 1/4" | 3 | Safety Case | 000000 | 0000000 |
- For Use With: Air, Argon, Nitrogen, and Natural Gas
- Accuracy: ±1% Mid Scale (Grade A)
Available Pressure Ranges | |||||
---|---|---|---|---|---|
Pressure Range | Graduation Marks | Numeric Increments | |||
in. of H₂O | oz./in.2 | in. of H₂O | oz./in.2 | in. of H₂O | oz./in.2 |
0 to 10 | 0 to 6 | 0.1 | 0.1 | 1 | 1 |
0 to 15 | 0 to 9 | 0.2 | 0.1 | 3 | 1 |
0 to 20 | 0 to 12 | 0.2 | 0.1 | 2 | 1 |
0 to 30 | 0 to 18 | 0.2 | 0.2 | 5 | 2 |
0 to 40 | 0 to 24 | 0.5 | 0.2 | 5 | 2 |
0 to 60 | 0 to 35 | 1 | 0.5 | 10 | 5 |
0 to 80 | 0 to 45 | 1 | 0.5 | 10 | 5 |
0 to 100 | 0 to 57 | 1 | 1 | 10 | 10 |
0 to 150 | 0 to 90 | 2 | 1 | 30 | 10 |
Mounting | Bottom Connection (Flange Mount) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Case Color | Orientation | Fasteners Included | Hole Dia. | No. of Holes | Features | Each | |
NPT Male | |||||||||||
4 1/2" | 1/4 | 0° to 140° | -40° to 210° | Black | Upright | No | 1/4" | 3 | Safety Case | 000000 | 0000000 |
Low-Pressure Gauges for Chemicals




A plastic or stainless steel guard, also known as an isolator, protects the gauge from damage caused by corrosive chemicals. Use them with pumps, filters, regulators, and in process lines to measure and display pressures.
Polypropylene and 316 stainless steel guards are more chemical resistant than PVC and CPVC guards.
For technical drawings and 3-D models, click on a part number.
- For Use With: Water, Salt Water, Hydraulic Fluid, Bleach, Boric Acid, and Carbon Dioxide
- Accuracy: ±2% Mid Scale (Grade B)
Available Pressure Ranges | |||||
---|---|---|---|---|---|
Pressure Range | Graduation Marks | Numeric Increments | |||
psi | kg/cm2 | psi | kg/cm2 | psi | kg/cm2 |
0 to 30 | 0 to 2.1 | 0.5 | 0.05 | 5 | 0.5 |
0 to 60 | 0 to 4.2 | 1 | 0.1 | 10 | 1 |
0 to 150 | 0 to 11.2 | 2 | 0.2 | 20 | 2 |
- For Use With: Water, Salt Water, Hydraulic Fluid, Bleach, Boric Acid, and Carbon Dioxide
- Accuracy: ±2% Mid Scale (Grade B)
Available Pressure Ranges | |||||
---|---|---|---|---|---|
Pressure Range | Graduation Marks | Numeric Increments | |||
psi | kg/cm2 | psi | kg/cm2 | psi | kg/cm2 |
0 to 30 | 0 to 2.1 | 0.5 | 0.05 | 5 | 0.5 |
0 to 60 | 0 to 4.2 | 1 | 0.1 | 10 | 1 |
0 to 150 | 0 to 11.2 | 2 | 0.2 | 20 | 2 |
- For Use With: Water, Salt Water, Hydraulic Fluid, Boric Acid, and Carbon Dioxide
- Accuracy: ±2% Mid Scale (Grade B)
Available Pressure Ranges | |||||
---|---|---|---|---|---|
Pressure Range | Graduation Marks | Numeric Increments | |||
psi | kg/cm2 | psi | kg/cm2 | psi | kg/cm2 |
0 to 30 | 0 to 2.1 | 0.5 | 0.05 | 5 | 0.5 |
0 to 60 | 0 to 4.2 | 1 | 0.1 | 10 | 1 |
0 to 150 | 0 to 11.2 | 2 | 0.2 | 20 | 2 |
Bottom Connection | ||||||||
---|---|---|---|---|---|---|---|---|
Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Case Color | Guard Material | Guard Color | Each | |
NPT Female | ||||||||
2" | 1/4 | 40° to 240° | 40° to 240° | Black | Polypropylene Plastic | White | 0000000 | 0000000 |
Low-Pressure Differential Gauges with Color Indicator
A band of green, yellow, and red provides a clear indication of changes in differential pressure. Gauges are commonly used to indicate clogged filters.
For technical drawings and 3-D models, click on a part number.

- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, Nitrogen, Hydrogen, Argon, and Acetylene
- Accuracy: ±5% Full Scale (Not Graded)
Pressure Range, psi | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Green Band | Yellow Band | Red Band | Max. Pressure, psi | Environment Temp. Range, °F | Process Temp. Range, °F | Ht. | Wd. | Dp. | Case Color | Each | |
NPT Female | ||||||||||||
1/4 | 0-2 | 2-2.5 | 2.5-3.5 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 000000 |
1/4 | 0-3 | 3-4.5 | 4.5-5 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 00000 |
1/4 | 0-6 | 6-9 | 9-12 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 00000 |
1/4 | 0-7.5 | 7.5-12 | 12-15 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 00000 |
1/4 | 0-13 | 13-20 | 20-30 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 00000 |
1/4 | 0-19.5 | 19.5-29.5 | 29.5-43 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 00000 |
Low-Pressure Differential Gauges with Dial Indicator

Measure small changes in air pressure with these gauges. They are commonly used to indicate clogged filters and to monitor fans and blowers.
Service these gauges without removing them using air filter kits. Kits include two vent valves for releasing air.
Surface mounting brackets allow gauges to be quickly installed on any flat surface. L mounting brackets can be carried to wherever you need to take a pressure reading. They can stand alone or be hung. Wraparound mounting brackets make it easy to service tubing, and don’t require cutting a hole in the wall.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air
- Accuracy: ±2% Full Scale (Not Graded); except
0" to 0.25" in. of H2O: ±4% Full Scale (Not Graded)
0" to 0.5" in. of H2O: ±3% Full Scale (Not Graded)
Available Pressure Ranges | ||
---|---|---|
Pressure Range, in. of H₂O | Graduation Marks, in. of H₂O | Numeric Increments, in. of H₂O |
0 to 0.25 | 0.005 | 0.05 |
0 to 0.5 | 0.01 | 0.1 |
0 to 1 | 0.02 | 0.2 |
0 to 2 | 0.05 | 0.25 |
0 to 3 | 0.1 | 1 |
0 to 4 | 0.1 | 1 |
0 to 5 | 0.1 | 1 |
0 to 6 | 0.2 | 1 |
0 to 8 | 0.2 | 2 |
0 to 10 | 0.2 | 2 |
0 to 15 | 0.5 | 5 |
0 to 20 | 0.5 | 5 |
0 to 25 | 0.5 | 5 |
0 to 30 | 1 | 10 |
0 to 40 | 1 | 5 |
0 to 50 | 1 | 10 |
0 to 80 | 2 | 20 |
0 to 100 | 2 | 20 |
0 to 150 | 5 | 50 |
Dial Diameter | Pipe Size | Max. Pressure, psi | Environment Temp. Range, °F | Process Temp. Range, °F | Features | Includes | Each | |
NPT Female | ||||||||
---|---|---|---|---|---|---|---|---|
4" | 1/8 | 15 | 20° to 140° | 20° to 140° | Two Inlets and Two Outlets | Plugs for Unused Ports | 0000000 | 000000 |
NPT Female with NIST Certificate | ||||||||
4" | 1/8 | 15 | 20° to 140° | 20° to 140° | Two Inlets and Two Outlets | Plugs for Unused Ports | 0000000 | 000000 |

Includes | Each | |
9-ft. Lg. × 3/16" ID Tubing Carrying Case Mounting Bracket Two Pipe-to-Tube Adapters | 0000000 | 000000 |

Includes | Each | |
Mounting Bracket Mounting Fasteners Two 5-ft. Lg. Aluminum Tubing Two Pressure Tips Two Vent Valves | 0000000 | 000000 |

Includes | Each | |
7-ft. Lg. PVC Tubing Two Pressure Tips | 0000000 | 00000 |
Low-Pressure Differential Gauges with U-Tube
Also known as manometers, these gauges come with indicating liquid that moves up and down two columns—the difference in height between them is your pressure. They are commonly used to indicate clogged filters.
Magnet-mount gauges can be moved for use in multiple locations. Gauges with barbed tube connection have a flexible body that rolls up for storage or transport.

- For Use With: Acetylene, Air, Argon, Carbon Dioxide, and Steam
- Accuracy: Not Rated (Not Graded)
Environment Temp. Range | Process Temp. Range | Mounting | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pressure Range, in. of H₂O | Scale Range, in. of H₂O | Numeric Increments, in. of H₂O | Graduation Marks, in. of H₂O | Max. Pressure, psi | Ht. | Min., °F | Max., °F | Min., °F | Max., °F | Gender | Mount Type | Fasteners Included | Hole Dia. | Number of Holes | Each | |
With 1/4 NPT Female Threaded Pipe Connection | ||||||||||||||||
0-10 | 5-0-5 | 1 | 0.1 | 250 | 14" | 35° | 150° | 35° | 250° | Female | Screw On | No | 3/16" | 4 | 0000000 | 0000000 |
0-15 | 7-0-7 | 1 | 0.1 | 250 | 18" | 35° | 150° | 35° | 250° | Female | Screw On | No | 3/16" | 4 | 0000000 | 000000 |

- For Use With: Air, Argon, Carbon Dioxide, and Hydrogen
- Accuracy: Not Rated (Not Graded)
Pressure Range, in. of H₂O | Scale Range, in. of H₂O | Numeric Increments, in. of H₂O | Graduation Marks, in. of H₂O | Max. Pressure | Ht. | Max. Process Temp., °F | Gender | Mount Type | Each | |
With Barbed Tube Connection for 3/16" Tube ID | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
0-8 | 4-0-4 | 1 | 0.1 | Not Rated | 17" | 130° | Male | Magnet | 0000000 | 0000000 |
0-12 | 6-0-6 | 1 | 0.1 | Not Rated | 21" | 130° | Male | Magnet | 0000000 | 000000 |
0-16 | 8-0-8 | 1 | 0.1 | Not Rated | 25" | 130° | Male | Magnet | 0000000 | 000000 |
0-24 | 12-0-12 | 1 | 0.1 | Not Rated | 33" | 130° | Male | Magnet | 0000000 | 000000 |
0-30 | 15-0-15 | 1 | 0.1 | Not Rated | 39" | 130° | Male | Magnet | 0000000 | 000000 |
0-36 | 18-0-18 | 1 | 0.1 | Not Rated | 45" | 130° | Male | Magnet | 0000000 | 000000 |
0-48 | 24-0-24 | 1 | 0.1 | Not Rated | 57" | 130° | Male | Magnet | 0000000 | 000000 |
0-60 | 30-0-30 | 1 | 0.1 | Not Rated | 69" | 130° | Male | Magnet | 0000000 | 000000 |
0-72 | 36-0-36 | 1 | 0.1 | Not Rated | 81" | 130° | Male | Magnet | 0000000 | 000000 |

- For Use With: Air, Argon, Carbon Dioxide, and Hydrogen
- Accuracy: Not Rated (Not Graded)
Pressure Range, in. of H₂O | Scale Range, in. of H₂O | Numeric Increments, in. of H₂O | Graduation Marks, in. of H₂O | Max. Pressure, psi | Ht. | Gender | Mount Type | Each | |
With Compression Tube Connection for 1/4" Tube OD | |||||||||
---|---|---|---|---|---|---|---|---|---|
0-8 | 4-0-4 | 1 | 0.1 | 100 | 20" | Female | Magnet | 0000000 | 0000000 |
0-12 | 6-0-6 | 1 | 0.1 | 100 | 25" | Female | Magnet | 0000000 | 000000 |
0-16 | 8-0-8 | 1 | 0.1 | 100 | 30" | Female | Magnet | 0000000 | 000000 |
0-20 | 10-0-10 | 1 | 0.1 | 100 | 34" | Female | Magnet | 0000000 | 000000 |
0-24 | 12-0-12 | 1 | 0.1 | 100 | 39" | Female | Magnet | 0000000 | 000000 |
0-36 | 18-0-18 | 1 | 0.1 | 100 | 58" | Female | Magnet | 0000000 | 000000 |
Liquid for Low-Pressure Differential Gauges with U-Tube

Refill U-tube gauges.
Concentrated solutions should be diluted with distilled water prior to use.
Low-Pressure Differential Gauges with Digital Display

Measure small changes in air pressure with these hand-held gauges. They have a four-digit LCD display for easy reading of measurements. Gauges are commonly used to indicate clogged filters and to monitor fans and blowers.
- For Use With: Air, Natural Gas
- Accuracy: ±0.5% Full Scale (Not Graded)
Pressure Range | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
psi | bar | Resolution, psi | Max. Pressure, psi | For Tube ID | Environment Temp. Range, °F | Process Temp. Range, °F | Digit Ht. | Ht. | Wd. | Batteries Included | Environmental Rating | Each | |
Barbed Tube Connection | |||||||||||||
0-30 | 0-2.069 | 0.01 | 60 | 1/8"-3/16" | 35° to 100° | 0° to 140° | 3/8" | 6 1/2" | 2 13/16" | Yes | NEC Class I Division 2 Groups A, B, C, D | 0000000 | 0000000 |
Optional Nylon Carrying Case | 0000000 | Each | 000000 |
- For Use With: Air, Natural Gas
- Accuracy: ±0.5% Full Scale (Not Graded)
Pressure Range | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
kPa | in. of H₂O | Resolution, in. of H₂O | Max. Pressure, psi | For Tube ID | Environment Temp. Range, °F | Process Temp. Range, °F | Digit Ht. | Ht. | Wd. | Batteries Included | Environmental Rating | Each | |
Barbed Tube Connection | |||||||||||||
0-4.982 | 0-20 | 0.01 | 10 | 1/8"-3/16" | 35° to 100° | 0° to 140° | 3/8" | 6 1/2" | 2 13/16" | Yes | NEC Class I Division 2 Groups A, B, C, D | 0000000 | 0000000 |
0-49.82 | 0-200 | 0.1 | 30 | 1/8"-3/16" | 35° to 100° | 0° to 140° | 3/8" | 6 1/2" | 2 13/16" | Yes | NEC Class I Division 2 Groups A, B, C, D | 0000000 | 000000 |
Optional Nylon Carrying Case | 0000000 | Each | 000000 |
Low-Pressure Differential Gauges with Inclined Scale
Easier to read than U-tube gauges, these use an inclined scale to measure pressure or velocity in air applications. Gauges are also known as manometers.

- For Use With: Air
- Accuracy: ±3% Full Scale (Not Graded)
Indicating Liquid | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Pressure Range, in. of H₂O | Max. Pressure, psi | Max. Process Temp. Range, °F | Ht. | Color | Specific Gravity | Mount Type | Mounting Fasteners Included | Includes | Each | |
With Barbed Tube Connection for 3/16" Tube ID | ||||||||||
0-3 | 10 | 140° | 6" | Red | 0.826 | Screw On | Yes | 8-ft. Lg. Tubing; Indicating Liquid | 000000 | 000000 |
0-7 | 10 | 140° | 6" | Blue | 1.91 | Screw On | Yes | 8-ft. Lg. Tubing; Indicating Liquid | 000000 | 000000 |
Differential Pressure and Vacuum Gauges

Commonly used to indicate clogged filters, these gauges display the difference between two pressure or vacuum measurements. They are also known as compound gauges.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air
- Accuracy: ±2% Mid Scale (Not Graded); except
0 to 0.2" in. of H2O: ±4% Mid Scale (Not Graded)
0 to 0.25" in. of H2O: ±3% Mid Scale (Not Graded)
Available Pressure and Vacuum Ranges | |||
---|---|---|---|
Pressure Range, in. of H₂O | Vacuum Range, in. of H₂O | Graduation Marks, in. of H₂O | Numeric Increments, in. of H₂O |
0 to 0.2" | -0.05" to 0 | 0.01 | 0.05 |
0 to 0.25" | -0.25" to 0 | 0.01 | 0.05 |
0 to 0.5" | -0.5" to 0 | 0.02 | 0.1 |
0 to 1" | -1" to 0 | 0.05 | 0.25 |
0 to 5" | -5" to 0 | 0.2 | 1 |
0 to 10" | -10" to 0 | 0.5 | 5 |
0 to 15" | -15" to 0 | 1 | 5 |
Dial Diameter | Pipe Size | Max. Pressure, psi | Environment Temp. Range, °F | Process Temp. Range, °F | Features | Includes | Each | |
NPT Female | ||||||||
---|---|---|---|---|---|---|---|---|
4" | 1/8 | 15 | 20° to 140° | 20° to 140° | Two Inlets and Two Outlets | Plugs for Unused Ports | 00000000 | 000000 |
NPT Female with NIST Certificate | ||||||||
4" | 1/8 | 15 | 20° to 140° | 20° to 140° | Two Inlets and Two Outlets | Plugs for Unused Ports | 0000000 | 000000 |