Dayton
Dayton 4PDK2 Low Side HVAC Gauge Blue 350 psi
Blue low-side HVAC gauge reads 30 in Hg to 350 psi for R-12, R-22 and R-502 systems
- ColorBlue
- Low-side monitoring for R-12, R-22 and R-502 systems
- 350 psi working pressure handles demanding HVAC tasks
- Blue colour identifies low-side function at a glance
- 2-3/4 in dial gives clear, readable measurements
- 1/8 in connection fits standard manifold gauge sets
Low-side HVAC gauge for manifold sets
The Dayton 4PDK2 is a low-side replacement gauge built for manifold gauge sets used in HVAC service work. Its blue dial indicates low-side pressure and is calibrated for refrigerants R-12, R-22 and R-502. The 1/8 inch connection fits standard manifold ports. Technicians replacing a damaged or worn gauge will find a direct fit.
Sustained pressure reading up to 350 psi
The gauge reads from 30 in Hg vacuum through 350 psi working pressure, covering evacuation and charge cycles without pegging. The movement is designed for continuous exposure to refrigerant pressure during extended service sessions. The blue colour coding prevents accidental cross-connection with high-side gauges on the manifold.
Verify manifold port thread
Confirm your manifold set uses 1/8 inch gauge ports before ordering. Ensure the system refrigerant is R-12, R-22 or R-502, as the scale is marked for those three. This gauge carries a California Proposition 65 warning for chemicals known to cause cancer and reproductive harm.
Highlights
- Low-side monitoring for R-12, R-22 and R-502 systems
- 350 psi working pressure handles demanding HVAC tasks
- Blue colour identifies low-side function at a glance
- 2-3/4 in dial gives clear, readable measurements
- 1/8 in connection fits standard manifold gauge sets
Specifications
| Brand | DAYTON |
|---|---|
| Color | Blue |
Questions about this item
Does the 350 psi low-side gauge run hot or draw power during all-day use?
This mechanical gauge has no electrical components, so it generates no heat and consumes no power while in operation.
What existing manifold set is required to install this 1/8 in connection gauge?
You need a manifold gauge set that accepts a 1/8 inch connection for the gauge to thread in and function.
Will this blue gauge read correctly on an older R-12 or R-22 system I still service?
Yes, the dial is calibrated for R-12, R-22 and R-502 refrigerants, matching the scales on legacy manifold sets.
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