1221-36-W/M

1221-36-W/M is a series 1221 Flex-Tube® U-tube manometer combine the inherent accuracy of the “U” Tube with the durability of tough, long-lasting plastic construction. The columns are made of 0.375˝ O.D. flexible and shatterproof clear butyrate tubing and are backed by a white scale channel to provide maximum colour contrast. This manometer is ideal wherever a portable, direct reading manometer is needed. The Series 1221 Flex-Tube® U-tube manometer is a lowest cost basic U-gage. A dependable U-tube manometer that withstands hard use and provides accurate, high visibility readings. For use with water, mercury or red gauge fluid. For mercury filled manometers, a scale clamp bar, Dwyer® Part No. A-363 is recommended. One pair of carrying plugs and a pair of non-kink vinyl tube connectors are included with each manometer.

• Range from 18-0-18" water column
• Inches of water/mercury fluid
• Suitable for total pressures up to 100 psi
• High contrast scale for better precision when measuring
• Furnished with one 3/4oz bottle of fluorescein green colour concentrate with special wetting agent 
• Used in duct static pressure, calibration labs and filter monitoring

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Not recommended for vacuum service above 5 in. Hg (68 in w.c.).