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Green ABS plastic pressure gauge with 1/4 MNPT bottom connection

Zoro Select

Zoro Select 4EFH7 Pressure Gauge Trap 0-400 psi 1/4 MNPT Green

SKU CH-5YY7-3EJ6C

A 0-400 psi pressure gauge with 1/4 MNPT bottom connection, ABS plastic case, and brass wetted parts

  • Product colorGreen
  • Measures up to 400 psi for high-pressure systems
  • Secondary scale reads 0 to 2800 kPa for metric reference
  • Accuracy within ±2-1-2 % of full scale for reliable readings
  • ABS plastic case with green finish resists corrosion in harsh environments
  • Brass and bronze wetted parts withstand fluid contact without degradation

0-400 psi Test Gauge

This Zoro Select pressure gauge measures from 0 to 400 psi with a secondary range of 0 to 2800 kPa. It features a 1/4 inch MNPT bottom connection and a green ABS plastic case. Accuracy is rated at +/-2-1-2 percent with a smallest graduation of 4 psi.

Suited for Basic Monitoring

The gauge suits technicians needing a simple, panel-mountable test instrument for air or compatible fluid lines. It is not liquid-filled, so it lacks the vibration damping required for high-pulsation systems. Buyers who need a calibration certificate included should look elsewhere.

+/-2-1-2 Percent Accuracy

The single specification that decides fit is the stated accuracy of +/-2-1-2 percent across the 0 to 400 psi primary range. This tolerance determines whether the gauge meets the precision requirements for your specific testing or inspection application.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 67% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameZORO SELECT
Product colorGreen

Questions about this item

What thread does the 1/4 MNPT connection on this gauge need to seal against?

It requires a matching 1/4 inch female NPT fitting so the male tapered threads can make a pressure-tight seal.

Will the brass and bronze wetted parts resist corrosion if I keep my older steel piping?

Brass and bronze are compatible with steel in water or air systems, but galvanic corrosion can appear over time if the fluid is conductive.

How do I confirm the needle reads correctly across the 0 to 400 psi scale after installation?

Pressurise the system to a known reference point and check that the pointer lands on the corresponding 4 psi graduation mark.

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