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	Scale Scale

in. of H2O

oz./in.²

psi

	For Use With For Use With

	Connection Location Connection Location

	Bottom		Center Back

	Measures Measures

Pressure

Vacuum

	Maximum Pressure, psi Maximum Pressure, psi

3 psi

5 psi

10 psi

	Case Material Case Material

Steel

Stainless Steel

	Dial Diameter Dial Diameter

2 1/2"

	Lens Material Lens Material

Plastic

Glass

	Maximum Pressure, in. of H2O Maximum Pressure, in. of H2O

	Maximum Process Temperature Maximum Process Temperature

140Â° F

175Â° F

	Accuracy Grade Accuracy Grade

Not Graded

	Graduation Marks, in. of H2O Graduation Marks, in. of H2O

	Numeric Increments, in. of H2O Numeric Increments, in. of H2O

	Graduation Marks, psi Graduation Marks, psi

0.05 psi

0.1 psi

0.2 psi

	Maximum Vacuum , in. of H2O Maximum Vacuum , in. of H2O

	Maximum Pressure , oz./in.^2 Maximum Pressure , oz./in.^2

	Graduation Marks, oz./in.^2 Graduation Marks, oz./in.^2

	Numeric Increments, oz./in.^2 Numeric Increments, oz./in.^2

	Numeric Increments, psi Numeric Increments, psi

0.5 psi

1 psi

2 psi

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19 Products

About Pipe Size

About Pressure Gauges

Single Scale With Bottom Connection

Single Scale With Center Back Connection

Bottom Connection

Center Back Connection

Measure small pressure changes in ventilation systems, hydraulic applications, and other critical processes with these high-accuracy gauges.

Gauges with 304 stainless steel case or polyester plastic case have better corrosion resistance than gauges with steel case.

For technical drawings and 3-D models, click on a part number.

Painted Steel Case with Brass Connectionâ€”Single Scale (psi)

For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
Accuracy: Â±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
Dial Diameter	Pipe Size	Environment Temp. Range, Â°F	Process Temp. Range, Â°F	Case Color		Each
NPT Male
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	000000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	000000
Center Back Connection
NPT Male
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	00000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	000000

Painted Steel Case with Brass Connectionâ€”Single Scale (in. of Hâ‚‚O)

For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
Accuracy: Â±1.5% Full Scale (Not Graded)

Available Pressure Gauges
Pressure Range, in. of Hâ‚‚O	Graduation Marks, in. of Hâ‚‚O	Numeric Increments, in. of Hâ‚‚O
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
Dial Diameter	Pipe Size	Environment Temp. Range, Â°F	Process Temp. Range, Â°F	Case Color		Each
NPT Male
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	000000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	000000
Center Back Connection
NPT Male
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	00000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	000000

Painted Steel Case with Brass Connectionâ€”Single Scale (oz./in.²)

For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
Accuracy: Â±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
Dial Diameter	Pipe Size	Environment Temp. Range, Â°F	Process Temp. Range, Â°F	Case Color		Each
NPT Male
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	000000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	000000
Center Back Connection
NPT Male
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	00000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	0Â° to 140Â°	0Â° to 140Â°	Black	0000000	000000

304 Stainless Steel Case with Brass Connectionâ€”Single Scale (psi)

For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
Accuracy: Â±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, Â°F	Process Temp. Range, Â°F		Each
NPT Male
4"	1/4	0Â° to 140Â°	0Â° to 140Â°	000000	0000000

304 Stainless Steel Case with Brass Connectionâ€”Single Scale (in. of Hâ‚‚O)

For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
Accuracy: Â±1% Full Scale (Grade 1A)

Available Pressure Gauges
Pressure Range, in. of Hâ‚‚O	Graduation Marks, in. of Hâ‚‚O	Numeric Increments, in. of Hâ‚‚O
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, Â°F	Process Temp. Range, Â°F		Each
NPT Male
4"	1/4	0Â° to 140Â°	0Â° to 140Â°	000000	0000000

304 Stainless Steel Case with Brass Connectionâ€”Single Scale (oz./in.²)

For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
Accuracy: Â±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, Â°F	Process Temp. Range, Â°F		Each
NPT Male
4"	1/4	0Â° to 140Â°	0Â° to 140Â°	000000	0000000

Ultra-Low Vacuum Gauges

Bottom Connection

Accommodate applications with very low vacuum with these gauges. Use them with vacuum pumps, packaging equipment, and in suction lines to measure and display vacuum.

Gauges with 304 stainless steel case have better corrosion resistance than gauges with steel case.

For technical drawings and 3-D models, click on a part number.

Painted Steel Case with Brass Connectionâ€”Single Scale (in. of Hâ‚‚O)

For Use With: Air
Accuracy: Â±1.6% Full Scale (Not Graded)

Available Vacuum Ranges
Vacuum Range, in. of Hâ‚‚O	Graduation Marks, in. of Hâ‚‚O	Numeric Increments, in. of Hâ‚‚O
-100 to 0	2	20
-60 to 0	1	10
-30 to 0	0.5	5
-15 to 0	0.2	3

					Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, Â°F	Process Temp. Range, Â°F	Case Color		Each
NPT Male
2 1/2"	1/4	0Â° to 140Â°	0Â° to 175Â°	Black	000000	000000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	0Â° to 140Â°	0Â° to 175Â°	Black	000000	000000

304 Stainless Steel Case with Brass Connectionâ€”Single Scale (in. of Hâ‚‚O)

For Use With: Air
Accuracy: Â±1% Full Scale (Not Graded)

Available Vacuum Ranges
Vacuum Range, in. of Hâ‚‚O	Graduation Marks, in. of Hâ‚‚O	Numeric Increments, in. of Hâ‚‚O
-100 to 0	2	20
-60 to 0	1	10
-30 to 0	0.5	5
-15 to 0	0.2	3

				Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, Â°F	Process Temp. Range, Â°F		Each
NPT Male
4"	1/4	0Â° to 140Â°	0Â° to 175Â°	000000	0000000
NPT Male with Calibration Certificate Traceable to NIST
4"	1/4	0Â° to 140Â°	0Â° to 175Â°	000000	000000

Terms and Conditions and Privacy Policy

About Pipe Size

About Pressure Gauges

High-Accuracy Low-Pressure Gauges

Ultra-Low Vacuum Gauges

High-Accuracy Low-Pressure Gauges

Ultra-Low Vacuum Gauges