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Black polysulfone low-pressure gauge with white dial and bottom 1/4 NPT connection

Ashcroft

Ashcroft 25 1490A 02L 15" H2O Pressure Gauge measurement tool

SKU CH-DKC3-58T6S

Low-pressure gauge reads 0 to 15 inH₂O with a 2½-inch white dial and ±2-1-2% accuracy

  • Product typeElectronic
  • +/-2-1-2% accuracy for precise low-pressure readings
  • 0 to 15 H2O range suits HVAC and lab applications
  • IP54 rated case resists dust and splashing water
  • Glass-filled polysulfone body with polycarbonate lens ensures durability
  • 1/4 in NPT male bottom connection fits standard fittings

Low Pressure Gauge 0-15 Inches

The Ashcroft 25 1490A 02L is a low pressure gauge designed for measuring water column pressure up to 15 inches H2O. It features a 2-1/2 inch nominal dial size with a white face and black case constructed from glass-filled polysulfone. The instrument offers an accuracy of +/-2-1-2 percent and carries an IP54 rating for dust and water ingress protection. A 1/4 inch male NPT bottom connection allows direct process mounting.

For Low Pressure Air And Water Systems

This gauge suits technicians monitoring HVAC, laboratory, or filtration systems requiring precise low-range indication. The polysulfone case and polycarbonate lens resist corrosion in compatible media. It is not suitable for applications needing vibration dampening or liquid-filled cases. Buyers requiring higher pressure ranges, field-fillable designs, or panel mounting via bolt circle should select a different model.

1/4 Inch Male NPT Bottom Connection

The process connection is a 1/4 inch male NPT thread located at the bottom of the gauge. This specific fitting determines compatibility with existing piping or test ports. Verify that the mating thread matches this size and type before installation. The bolt circle diameter measures 2.13 inches if surface mounting is considered.

How it compares

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

Price $46.99
Cheaper than about 54% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameASHCROFT
Product typeElectronic

Questions about this item

Will the 1/4 in NPT male connection thread directly into my existing 1/4 in NPT female port?

Yes, the process connection is a 1/4 in NPT male thread designed to seal into a standard 1/4 in NPT female fitting.

Can this polysulfone case withstand the same ambient conditions as the metal gauges I currently use?

The glass-filled polysulfone case carries an IP54 rating, protecting against dust ingress and water splashes from any direction.

How do I verify the +/-2-1-2 percent accuracy is holding after installation?

Apply a known reference pressure across the 0 to 15 range and confirm the pointer reads within the stated tolerance at each test point.

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