Dwyer Instruments 1223-16-D analog manometer with a Flex U-Tube tool for measuring pressure in gas lines, and other industrial applications. This unit provides accurate readings from -8 to 8 inches of water column (wc), making it suitable for both vacuum and pressure measurement tasks. Its flexible U-tube construction ensures durability and ease of use, even in rugged environments. With clear, easy-to-read scales and a robust build, the manometer is designed for long-term performance in demanding conditions. This analog manometer offers simple operation without the need for complex calibration or power sources, ensuring hassle-free pressure monitoring.