Harbor Freight Tools


1/4 in. NPT(F) Mini Regulator

Control air pressure to prolong the life of your air tools with this compact regulator

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The MERLIN™ Mini Regulator allows you to control air pressure for better results and to prolong the life of your air tools. This handy compact regulates pressure up to 150 PSI and features a modular design with mounting bracket and gauge. Ideal for working with pneumatic tools.

  • Filters water and particles to preserve air tool life
  • 90 CFM max flow at 100 PSI
  • Self-relieving regulator
  • Locking, non-rising knob
  • -23° to 150° F max operating range
  • Includes 1.5 in. gauge with 5 PSI-150 PSI range

Flow rate
90 CFM
Air inlet size
1/4 in. NPT(F)
1.5 in.
Aluminum, zinc
Maximum pressure (PSI)
300 PSI
Minimum Pressure (PSI)
Product Height
4.24 in.
Product Length
3.21 in.
Product Weight
0.86 lbs.
Product Width
1.97 in.
Shipping Weight
1.05 lb.
Temperature range (deg F)
-23° to 150° F
Working pressure (psi)
150 PSI
Note: Specifications are approximate and subject to change

We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.