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HVAC Manometers and Micromanometers

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Dwyer 1222-M1000-W/M - Flex-Tube U-Tube Manometer, Range 500-0-500 mm w.c.

Type (Manometer): U-Tube
Max Pressure: 500 MM of H2O (9730732.15 IN of H2OWhat's This?)
Type of Input: N/A
Engineering Units (HVAC): inch H2O
Measurement : Differential
Min/Max/Hold: N/A

Your Price: $118.55

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Dwyer 1221-12-D - Flex-Tube U-Tube Manometer, 6-0-6" w.c.

Type (Manometer): U-Tube
Engineering Units (HVAC): inch H2O
Unique Features: U-tube manometer, range 6-0-6" w.c.
Country of Origin: United States

Your Price: $69.70

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Dwyer 1221-16-D - Flex-Tube U-Tube Manometer, Range 8-0-8" w.c.

Type (Manometer): U-Tube
Engineering Units (HVAC): inch H2O
Unique Features: U-tube manometer, range 8-0-8" w.c.
Country of Origin: United States

Your Price: $71.75

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Dwyer 1221-20-D - Flex-Tube U-Tube Manometer, Range 10-0-10" w.c.

Type (Manometer): U-Tube
Engineering Units (HVAC): inch H2O
Unique Features: Flex-Tube U-Tube Manometer, Range 10-0-10" w.c.
Country of Origin: United States

Your Price: $75.40

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Dwyer 1221-8-D - Flex-Tube U-Tube Manometer, Range 4-0-4" w.c

Type (Manometer): U-Tube
Engineering Units (HVAC): inch H2O
Unique Features: U-tube manometer, range 4-0-4" w.c.
Country of Origin: United States

Your Price: $63.45

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Dwyer 1221-M200-D - Flex-Tube U-Tube Manometer, Range 100-0-100 mm w.c.

Type (Manometer): U-Tube
Engineering Units (HVAC): inch H2O
Unique Features: U-tube manometer, range 100-0-100 mm w.c
Country of Origin: United States

Your Price: $63.45

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Dwyer 1221-M300-D - Flex-Tube U-Tube Manometer, Range 150-0-150 mm w.c.

Type (Manometer): U-Tube
Engineering Units (HVAC): inch H2O
Unique Features: U-tube manometer, range 150-0-150 mm w.c.
Country of Origin: United States

Your Price: $69.70

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Dwyer 1222-12-D - Flex-Tube U-Tube Manometer, Range 6-0-6" w.c.

Type (Manometer): U-Tube
Engineering Units (HVAC): inch H2O
Unique Features: U-tube manometer, range 6-0-6" w.c
Country of Origin: United States

Your Price: $90.50

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Dwyer 1222-16-D - Flex-Tube U-Tube Manometer, Range 8-0-8" w.c.

Type (Manometer): U-Tube
Engineering Units (HVAC): inch H2O
Unique Features: U-tube manometer, range 8-0-8" w.c.
Country of Origin: United States

Your Price: $93.60

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Dwyer 1222-36-D - Flex-Tube U-Tube Manometer, Range 18-0-18" w.c.

Type (Manometer): U-Tube
Max Pressure: 18 IN of H2O
Type of Input: N/A
Engineering Units (HVAC): inch H2O
Measurement : Differential
Min/Max/Hold: N/A

Your Price: $118.55

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Dwyer 1222-36-W/M - Flex-Tube® U-Tube Manometer, Range 18-0-18" w.c.

Type (Manometer): U-Tube
Max Pressure: 18 IN of H2O
Type of Input: N/A
Engineering Units (HVAC): inch H2O
Measurement : Differential
Min/Max/Hold: N/A

Your Price: $118.55

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Dwyer 1222-8-D - Flex-Tube U-Tube Manometer, Range 4-0-4" w.c.

Type (Manometer): U-Tube
Engineering Units (HVAC): inch H2O
Unique Features: U-tube manometer, range 4-0-4" w.c.
Country of Origin: United States

Your Price: $83.70

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HVAC Manometers and Micromanometers

Manometers are used to measure low differential pressures and used in applications such as adjusting furnace blower fan speed. Modern day digital manometers originated from the inconveniences of the U-tube manometers. U-tube manometers use a glass, U shaped, tube filled with water or other fluid of known specific gravity, such as mercury. Hoses are connected to each end. As differential pressure is applied, the fluid displaces, creating a measurable height difference between columns.

Key Features to Consider in Selecting Manometers

Measurement range
Ability to change to many different measurement units
Min/Max/Data Hold feature
Datalogging
Zero function for offset correction
Kits containing a carrying case and hoses

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