Harbor Freight Tools


1/2 in. NPT(F) Air Filter with Regulator

Remove moisture and debris from air lines with this air filter and regulator

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The MERLIN™ Air Filter with Regulator extends the life of your air tools. The high flow modular filter/regulator removes water and particles down to 40 microns from your air lines. Includes mounting bracket and gauge.

  • 140 CFM Max flow at 100 PSI
  • Self-relieving
  • 3.5 oz. metal bowl with sight gauge
  • Locking, non-rising knob
  • 175° F max operating temperature
  • Includes 2 in. gauge with 5 PSI-150 PSI range

Flow rate
140 CFM
Accessories Included
Gauge, mounting bracket
Air inlet size
1/2 in. NPT(F)
2 in.
Maximum pressure (PSI)
250 PSI
Minimum Pressure (PSI)
Shipping Weight
3.10 lb.
Temperature range (deg F)
175° F
Working pressure (psi)
150 PSI
Filtration (microns)
40 microns
CA Residents
Warning - Prop 65 Info
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.