B2B
About this product
1. 2.5" Pressure Gauge,Glycerine filled 
2. Stainless Steel Case
3. Polycarbonate Lens
4. Brass Tube / Brass Socket
5. 1/4" NPT connection,bottom
6. ±1.6% accuracy


Glycerine filled Pressure Gauge, 2-1/2 in, Basic Gauge Case Material: Stainless Steel, Basic Gauge Wetted Parts Brass / Bronze, 1/4 in MNPT, Gauge Connection Location Center Back,Polycarbonate lens material. 0 to 300 psi, ±1.6 Percentc accuracy,  Ambient operating temp.: -40° to 140°F.
Liquid fill reduces pulsation and pointer vibration. Glycerin-filled corrosion-resistant gauge can be used outdoors or in harsh conditions. Compatible with air, water,and oils in hydraulic equipment.pressure washers, pumps, and compressors. 


Liquid fill reduces pulsation and pointer vibration. The glycerin-filled corrosion-resistant gauge can be used outdoors or in harsh conditions. Compatible with air, water, and oils in hydraulic equipment.pressure washers, pumps, and compressors. 


  • · Pressure Range:0-300psi/0-2000 KPa
  • · Size:1/4"NPT
  • · Applicable: Water, Oil, Air and more
  • · Ambient operating temp.: -40° to 140°F.

Pointer:  By means of pressure transformation. Rotated to the exact position.

Range:  scale psi outside KPa inside

Process connection : 1/4"NPT lower mount

Window: Polycarbonate

Dial size: 2.5 inch

Case:  stainless steel case and crimped ring

Connection: Brass

Oil Plug: Prevent internal glycerine leakage, and improve overall safety.


Technical Specifications

Item Glycerine filled Pressure Gauge
Gauge Primary Range Values 0 to 300 psi
Gauge Case Material Stainless Steel
Basic Gauge Sensor Material Bronze
Basic Gauge Wetted Parts Brass/Bronze
Liquid Filled Glycerine
Connection Size 1/4 in NPT
Dial Size 2-1/2 in
Basic Gauge Lens Material Polycarbonate
Gauge Connection Location Center Bottom
OperatiRangeng Temp. Range 40 Degrees to 140 Degrees F
Range 0 to 300 psi, 0 to 20 bar

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Bolton Tools Glycerine Filled Pressure Gage 300 PSI 1/4" NPT Lower Mount 2-1/2 In

  • Model #: 3N9KP4XX
  • Availability: In Stock
  • WARRANTY: 90-Days
  • Before: $17.46
  • Now: $14.84

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