
Model No.
135501 (1/8" pipe thread)
136501 (3/8" straight thread
o-ring)
137501 (M-10 thread)
How
Does It Work?
The graduated indicator monitors engine
air filters. The position indicator progressively
fills the window as air filter restriction increases,
locking at the highest restriction. The air filter
should be changed when the position indicator reaches
the red zone.
Mounting
Mounts
directly to air cleaner or air induction piping. Adapter
fittings are available.
Specifications
- Vacuum
Indicator (differential and pressure available)
- Locking
Type (non-locking is available)
- Operating
Temperature: -40 to +250°F (-40 to +121°C)
- Accuracy:
±10% at red zone
- Material:
Polycarbonate housing
- Standard
Calibration: 8-35" water vacuum (2-8.7kPa)
at the red zone