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Red high-side HVAC gauge 3 1/8 inch dial 800 psi

JB Industries

JB Industries M2-895 High Side Gauge Red 800 psi

SKU CH-4CXG-XM48W

High-side HVAC gauge reads 0–800 psi with ±1.00% accuracy for R-22, R-404A and R-410A systems

  • Product colorRed
  • High-side monitoring up to 800 psi for safe refrigerant handling
  • ±1.00 % accuracy ensures reliable pressure readings on every job
  • Red dial face gives instant visual identification of high-side circuit
  • Compatible with R-22, R-404A and R-410A refrigerants across common systems
  • 1/8 in connection fits standard manifold gauge sets for direct replacement

High-Side Gauge for R-22, R-404A, R-410A Systems

This JB Industries high-side gauge measures pressure from 0 to 800 psi with a 1.00 percent accuracy rating. The 3 1/8 inch diameter dial features a red colour code for quick high-side identification. It connects via a 1/8 inch port and is designed as a direct replacement for manifold gauge sets used with R-22, R-404A and R-410A refrigerants.

Replaces Worn or Damaged Manifold Gauges

Technicians should swap this gauge in when the existing high-side indicator shows drift beyond the 1.00 percent tolerance or the dial face is cracked. The upgrade is worth it when servicing systems charged with R-22, R-404A or R-410A and the current gauge no longer holds calibration. It is not for low-side measurement, low-pressure refrigerants or digital manifold setups.

Simple Thread-In Installation

Installation requires threading the 1/8 inch connection into the manifold block and tightening to a leak-free seal. The most common issue is cross-threading the port or reusing an old washer that allows refrigerant to escape. Over-tightening can distort the brass fitting, while under-tightening leaves a slow leak that skews pressure readings.

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Price $49.99
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Specifications

Product
Brand nameJB INDUSTRIES
Product colorRed

Questions about this item

What connection size does the M2-895 high side gauge require for mounting?

The gauge uses a 1/8 in connection size for installation on compatible manifold sets.

How do you install the gauge and what step is often missed?

Thread the gauge onto the manifold high side port using the 1/8 in connection and apply proper sealant to prevent refrigerant leaks.

What refrigerants is this 800 psi gauge rated for and when should it be replaced?

It is rated for R-22, R-404A and R-410A; replace if the needle drifts beyond the +/- 1.00 Percent accuracy or the Bourdon tube fatigues.

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