Unused Project Surplus. No box.
Dwyer 209-AF MANOMETER AIR FILTER GAUGE, .20-0-3.0
SPECIFICATION:
- Highly accurate, easy to use, almost indestructible, foolproof and dependable.
- There are no moving parts - no mechanical linkages - nothing to wear out, jam or deteriorate from vibration.
- They never need calibration.
- Precision machined 1" thick solid acrylic plastic, virtually unbreakable and free of distortion.
- The fluid bore is precision drilled to ±.0002" to assure life long accuracy.
- A glass spirit level is built into the body and encapsulated to prevent damage or tampering.
- The scale is mirror polished chrome plated brass to assure parallax free reading by alignment of the meniscus with its reflection.
- Safety traps are incorporated in the body to prevent loss of fluid due to pressure surges.
- Red and green signal flags indicate clearly when a filter change is necessary.
- Gauges are suitable for use in ambient temperatures of -20 to 150°F.
- Connection fittings are positively sealed by "O" rings but easily removed for zeroing or addition of fluid.