The Dwyer 1223 series are designed to measure positive, negative and differential pressures and combine the inherent accuracy of the simple "U" Tube with the durability of tough, flexible and shatter proof clear butyrate tubing.

• Range: 10 - 10 Inches of Water
• Maximum Pressure: 100 psi

The Dwyer 1223 series are designed to measure positive, negative and differential pressures and combine the inherent accuracy of the simple "U" Tube with the durability of tough, flexible and shatter proof clear butyrate tubing.

• Range: 12 - 12 Inches of Water
• Maximum Pressure: 100 psi

The Dwyer 1223 series are designed to measure positive, negative and differential pressures and combine the inherent accuracy of the simple "U" Tube with the durability of tough, flexible and shatter proof clear butyrate tubing.

• Range: 18 - 18 Inches of Water
• Maximum Pressure: 100 psi

The Dwyer 1223 series are designed to measure positive, negative and differential pressures and combine the inherent accuracy of the simple "U" Tube with the durability of tough, flexible and shatter proof clear butyrate tubing.

• Range: 100 - 100 MM of Water
• Maximum Pressure: 100 psi

The Dwyer 1223 series are designed to measure positive, negative and differential pressures and combine the inherent accuracy of the simple "U" Tube with the durability of tough, flexible and shatter proof clear butyrate tubing.

• Range: 150 - 150 MM of Water
• Maximum Pressure: 100 psi

The Dwyer 1223 series are designed to measure positive, negative and differential pressures and combine the inherent accuracy of the simple "U" Tube with the durability of tough, flexible and shatter proof clear butyrate tubing.

• Range: 200 - 200 MM of Water
• Maximum Pressure: 100 psi

The Dwyer 1223 series are designed to measure positive, negative and differential pressures and combine the inherent accuracy of the simple "U" Tube with the durability of tough, flexible and shatter proof clear butyrate tubing.

• Range: 300 - 300 MM of Water
• Maximum Pressure: 100 psi

The Dwyer 1223 series are designed to measure positive, negative and differential pressures and combine the inherent accuracy of the simple "U" Tube with the durability of tough, flexible and shatter proof clear butyrate tubing.

• Range: 500 - 500 MM of Water
• Maximum Pressure: 100 psi

The Dwyer Mark II series is designed with a curved inclined-vertical tube gage that provides higher ranges with more easily read increments at low readings.

• Range: 0 - 3 Inches of Water
• Maximum Pressure: 10 psi
• Accuracy: +/- 3% FS

The Dwyer Mark II series is designed with a curved inclined-vertical tube gage that provides higher ranges with more easily read increments at low readings.

• Range: 0 - 7 Inches of Water
• Maximum Pressure: 10 psi
• Accuracy: +/- 3% FS

The Dwyer Mark II series provides linear calibration and excellent resolution throughout its range and is ideally suited for air velocity and air filter gage applications.

• Range: 0.1 - 1.0 Inches of Water
• Maximum Pressure: 15 psi
• Accuracy: +/- 3% FS

The Dwyer Mark II series provides linear calibration and excellent resolution throughout its range and is ideally suited for air velocity and air filter gage applications.

• Range: 0 - 1.1 Inches of Water
• Maximum Pressure: 15 psi
• Accuracy: +/- 3% FS