Dwyer Instruments 1223-36-D Flex-Tube U-Tube Manometer 18-0-18" WC Red Gauge Fluid

The Dwyer Instruments 1223-36-D is a Flex-Tube Series U-Tube Manometer designed for precise measurement of low differential pressures and draft applications. This dual-scale instrument measures pressure ranges from -18 to 0 to +18 inches of water column (WC), making it ideal for HVAC systems, gas pressure monitoring, and industrial ventilation applications.

Key Features:

• U-tube design with clear, flexible tubing for easy pressure reading
• Dual scale range: -18 to 0 to +18 inches water column
• Red gauge fluid for high visibility and accurate measurements
• Durable construction with white enameled steel back and protective acrylic front
• Easy wall mounting with included hardware
• No moving parts for long-term reliability and minimal maintenance
• Suitable for measuring air and non-corrosive gas pressures

The Flex-Tube Series manometers are known for their simplicity and accuracy, providing direct visual indication of pressure without the need for calibration or power. The U-tube configuration uses the displacement of the red gauge fluid to indicate differential pressure, making it an economical and dependable solution for field and laboratory use.