Series Mark II molded manometers are of the inclined and inclined-vertical types. The curved inclined vertical tube of the model 25 provides higher ranges with more easily read increments at low readings. The model 25 is excellent for general purpose work. Dwyer Mark II manometer - the industry standard for crossdraft spray booths. This gauge takes the guesswork out of when to change your spray booth filters. OSHA required for paint spray booths. Capable of pressure measurements above and below atmospheric as well as differential pressure measurements. Included with each Mark II manometer are two tubing connectors for 1/8 in pipe or sheet metal ducts, two mounting screws, 1 oz bottle of indicating fluid, red and green pointer flags and complete instructions.
Features:
- More accurate information to change filters
- The model 25 also includes 8 ft of flexible double column plastic tubing
- A short piece of tubing can be slipped over the model 25 pressure connections to contain the gage fluid in transit.
- Manometer model 25 measures the pressure differential accurate indicator changing arrestors