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Stainless steel pressure gauge with center back connection, liquid filled, 0 to 400 psi scale

Zoro Select

Zoro Select 4CFL9 Pressure Gauge 0-400 psi 1/8 MNPT Stainless Steel

SKU CH-5BNG-QNB6D

Measures 0-400 psi with 304 stainless steel case and liquid-filled movement for vibration resistance

  • Product colorStainless Steel
  • 0–400 psi range with 0–2800 kPa secondary scale covers broad pressure checks
  • ±3-2-3 % accuracy class delivers reliable readings for general-purpose use
  • 304 stainless-steel case and wetted parts resist corrosion in harsh environments
  • 1/8 in MNPT centre-back connection fits standard panel cut-outs without extra adapters
  • Liquid-filled design damps vibration and extends gauge life on pulsating systems

Zoro Select 4CFL9 Pressure Gauge

The Zoro Select 4CFL9 is a general-purpose pressure gauge designed for monitoring system pressure up to 400 psi. It features a 1 1/2 inch dial housed in a 304 stainless steel case with a matching stainless steel finish. The wetted parts are also stainless steel, and the gauge is liquid filled for vibration dampening. It suits technicians and installers who need a durable, panel-mountable instrument for hydraulic or pneumatic lines.

Installation uses a 1/8 inch MNPT center back

Thread the gauge directly into a compatible female port using appropriate sealant on the tapered threads. The center back orientation positions the dial facing outward from the mounting surface. Because the gauge is not panel mountable, it relies on the piping for support. Over-tightening can damage the connection or strip threads, so apply only the torque recommended for the fitting size.

Liquid filling steadies the needle under sustained

The glycerine fill dampens pointer flutter caused by pump pulsation or flow turbulence, keeping readings readable during continuous operation. Accuracy follows a +/-3-2-3 percent grade across the 0 to 400 psi primary scale, with a secondary kPa scale reading 0 to 2800. The smallest graduation is 5 psi, allowing close observation of pressure trends over time. No calibration certificate is included.

How it compares

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

Price $14.99
Cheaper than about 74% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameZORO SELECT
Product colorStainless Steel

Questions about this item

How can I verify the gauge reads correctly after installing it on a 1/8 MNPT fitting?

Apply a known pressure source and confirm the pointer moves smoothly across the 0 to 400 psi scale with 5 psi graduations and the secondary 0 to 2800 kPa scale within the stated +/-3-2-3 percent accuracy.

What components are included and what must I supply separately?

The gauge itself is supplied with a stainless steel case, 304 stainless wetted parts, liquid-filled movement and centre-back 1/8 MNPT connection; you must provide the pipe thread sealant and any mounting hardware.

Which version should I choose for a 400 psi system requiring kPa reference?

This single model covers 0 to 400 psi with a 0 to 2800 kPa secondary range, liquid-filled 304 stainless construction and centre-back connection, matching those requirements exactly.

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