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Small silver stainless steel pressure gauge with white dial and center back connection

Zoro Select

Zoro Select Commercial Pressure Gauge 0 to 30 psi 1 1/2 in Dial 1/8 in NPT

SKU CH-7QWX-PRM57

Measures pressure from 0 to 30 psi with a 1 1/2 inch dial and 1/8 inch NPT connection

  • 0–30 psi range monitors low-pressure washing tasks
  • ±3-2-3 % accuracy class delivers reliable readings
  • 304 stainless-steel case resists corrosion in wet environments
  • 1/8 in NPT male connection fits standard pressure-washer ports
  • 1 1/2 in dial with white face gives clear visibility

Commercial Pressure Gauge 0–30 psi

This Zoro Select gauge measures pressure from zero to thirty psi on a one-and-a-half-inch white dial. The stainless-steel case and acrylic lens suit commercial pressure-washer installations. A centre-back male NPT connection threads directly into a one-eighth-inch port.

Check your port and range before ordering

Verify that the equipment uses a one-eighth-inch male NPT fitting at a centre-back location. Confirm the system pressure never exceeds thirty psi so the gauge remains within its calibrated span. The gauge is not field-fillable and carries no IP or NEMA rating for wet environments.

Steady reading under constant pressure

The +/-3-2-3 percent accuracy holds across the full scale during continuous operation. No liquid dampening or vibration resistance is built in, so the needle responds directly to sustained pressure without lag. The 304 stainless case resists corrosion during long-term exposure.

How it compares

Measured against everything we stock in Pressure Washer Guns & Spare Parts, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 90% of the 141 comparable items (median $26.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

Does the gauge ship with any fittings or sealant, or must I supply the 1/8 in NPT connection parts?

The gauge has a male 1/8 in NPT centre-back connection; no extra fittings or thread sealant are included, so you provide the mating parts.

Should I choose a different pressure range or dial size for my washer?

This model is fixed at 0 to 30 psi with a 1 1/2 in dial; other ranges or sizes are separate products.

What does the ±3-2-3 % accuracy mean when the gauge is installed on my machine?

Readings are within ±3 % of full scale in the first and last thirds of the dial and ±2 % in the middle third.

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