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Red high-side HVAC gauge with 2-3/4 inch dial face and 500 psi scale

Dayton

Dayton 4PDK1 High Side Gauge Red 500 psi

SKU CH-WHWB-D5DNJ

Measures high-side pressure up to 500 psi for R-12, R-22 and R-502 systems

  • Product colorRed
  • High-side pressure reading up to 500 psi for accurate system diagnostics
  • Red colour coding simplifies high-side identification during service work
  • Compatible with R-12, R-22 and R-502 refrigerants for versatile use
  • 2-3/4 inch dial diameter provides clear visibility of pressure values
  • 1/8 inch connection fits standard manifold gauge sets for direct replacement

High-Side HVAC Gauge 500 psi

This Dayton high-side gauge is designed for HVAC manifold sets used in refrigeration and air-conditioning service. It fits standard 1/8 in connections and provides pressure readings up to 500 psi for charging and diagnostics.

Working Pressure 500 psi

The gauge reads 0 to 500 psi, making it suitable for systems charged with R-12, R-22 or R-502. Selecting a gauge with this exact pressure range ensures accurate high-side readings during service work.

For R-12, R-22 and R-502 systems

Technicians servicing equipment that uses these refrigerants will find the gauge compatible. It is not intended for newer refrigerants requiring higher pressure ratings or different manifold connections.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 92% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameDAYTON
Product colorRed

Questions about this item

What does the 500 psi working pressure mean when the gauge is installed on a manifold set?

The gauge reads system pressure up to 500 psi, so it covers the high-side range for R-12, R-22 and R-502 refrigerant circuits.

How does the 1/8 in connection size limit which manifold blocks it can thread onto?

It fits any manifold block with a matching 1/8 in NPT port; blocks with larger ports would need an adapter.

Will the 2 3/4 in diameter dial clear the surrounding gauges on a standard four-valve manifold?

The 2 3/4 in dial is the common size for replacement high-side gauges, so it aligns with the other positions on most manifold bodies.

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