Series  Flex-Tube® U-Tube Manometers
1221
1222
1223
Series 1223 Manometer, Our finest U-gage - for either portable or stationary use.
Safety traps prevent loss of indicating fluid in case of accidental over-pressure.
Tubing is permanently bonded to a molded, high impact acrylic plastic top that contains
safety traps. Large magnetic clips and clamp bar are provided. Standard type "a" connections
include two rapid shut-off type molded nylon tubing connections, two 3-foot lengths
of flexible Tygon® plastic tubing, and two 1/8" pipe thread to tube adapters.
1221	1222	1223	Ranges
Model	Model	Model
1221-8-W/M	1222-8-W/M	1223-8-W/M	8 (4-0-4) in w.c.
1221-12-W/M	1222-12-W/M	1223-12-W/M	12 (6-0-6) in w.c.
1221-16-W/M	1222-16-W/M	1223-16-W/M	16 (8-0-8) in w.c.
1221-20-W/M	1222-20-W/M	1223-20-W/M	20 (10-0-10) in w.c.
1221-24-W/M	1222-24-W/M	1223-24-W/M	24 (12-0-12) in w.c.
1221-36-W/M	1222-36-W/M	1223-36-W/M	36 (18-0-18) in w.c.
1221-M200-W/M	1222-M200-W/M	1223-M200-W/M	M200 (100-0-100) mm w.c.
1221-M300-W/M	1222-M300-W/M	1223-M300-W/M	M300 (150-0-150) mm w.c.
1221-M400-W/M	1222-M400-W/M	1223-M400-W/M	M400 (200-0-200) mm w.c.
1221-M600-W/M	1222-M600-W/M	1223-M600-W/M	M600 (300-0-300) mm w.c.
1221-M1000-W/M	1222-M1000-W/M	1223-M1000-W/M	M1000 (500-0-500) mm w.c.
NOTE: To order models with red gage oil change -W/M to -D.
Standard Accessories
Series 1223 - Magnetic mounting clips; tube clamp and Type "a" connections consisting of two
rapid shut off molded nylon tubing connectors; two 1/8" pipe thread to tube adapters; two
3-foot lengths of Tygon® plastic tubing, 3/4 ounce bottle .826 sp. gr. red gage oil is furnished for
"D" style manometers; fluorescein green dye concentrate with "W/M" style.