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Round boiler gauge with black steel case, brass socket, plastic lens, center back 1/4 MNPT connection, dual scale 0-75 psi and 60-260 F

Value Brand

Value Brand Boiler Gauge 0-75 PSI 60-260 F Black Case

SKU CH-GA2B-G70J7

Measures boiler pressure up to 75 PSI and temperature from 60 to 260 °F with a black steel case and brass socket

  • Product typeElectronic
  • Accurate pressure monitoring with 0 to 75 psi range
  • Wide temperature visibility from 60 to 260 F
  • Durable steel case with black finish resists wear
  • Brass socket ensures corrosion-resistant connection
  • Clear plastic lens protects dial for easy reading

Boiler Gauge for Hydronic Systems

This 2½-inch round gauge measures both pressure and temperature on residential or light-commercial boilers. A centre-back ¼-inch MNPT connection threads directly into standard boiler tappings. The black steel case and plastic lens suit indoor mechanical rooms.

Installation Requirements and Clearances

The gauge needs a ¼-inch NPT female port on the boiler and enough clearance behind the panel for the centre-back stem. No external power or signal wiring is required because the movement is purely mechanical. Brass and bronze wetted parts resist corrosion in treated hydronic water.

Behaviour Under Continuous Operation

Accuracy holds at ±3-2-3 % of the 0-75 psi span and ±3 % across the 60-260 °F range during sustained heating cycles. The 20-120 °C dual scale lets technicians verify set-points without conversion. The gauge contains chemicals listed under California Proposition 65 for cancer and reproductive harm.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 89% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameZoro Select
Product typeElectronic

Questions about this item

How accurate is the pressure reading across the full 0-75 psi range?

The gauge accuracy is rated at +/-3-2-3 percent of span, meaning the middle two-thirds of the scale is within two percent and the ends within three percent.

Will the case or lens get hot enough to burn if the boiler runs near 260 F all day?

The steel case and plastic lens are rated for the full 60-260 F operating range, so they will reach process temperature but remain within design limits.

What pipe thread do I need on the boiler for the 1/4 in MNPT connection?

The gauge has a 1/4 inch male NPT centre-back socket, so the boiler must provide a matching 1/4 inch female NPT port.

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