Precision machined 1" thick solid acrylic plastic, virtually unbreakable and free of distortion. The fluid bore is precision drilled to ±0.0002" to assure life long accuracy. The scale is mirror polished chrome plated brass to assure parallax free reading by alignment of the meniscus with its reflection.

Dwyer solid plastic portable manometers are precision instruments in inclined and vertical (well-type) styles for the measurement of static pressure, vacuum or differential pressure. Suitable for Total Pressures Up to 100 psig, Temperatures Up to 150°F, Accuracy ±2% of Full Scale (1% on Model 115 Only).

These Manometers combine the inherent accuracy of the simple "U" Tube with the durability of tough, long-lasting plastic construction. Columns are of .375" O.D. flexible and shatter proof clear butyrate tubing. Stark white scales have graduations and numbers silkscreen-printed in black for maximum legibility.

Designed to meet the need for a direct reading single column instrument providing highly accurate pressure readings; positive, negative or differential. Dwyer manometers have no hidden wells or packing glands. These are constructed of shatter-proof clear plastic tubing permanently bonded to well assemblies with leak-proof glued joints.