Ingersoll Rand
Filter Regulator Lubricators (FRLs)

Filter Regulator Lubricators (FRLs) are essential components in pneumatic systems, ensuring clean, regulated, and lubricated air for optimal performance, efficiency, and longevity of equipment. The filter removes contaminants like dust, dirt, and moisture, preventing damage and corrosion, while the regulator maintains a stable and adjustable air pressure to prevent system fluctuations and inefficiencies. The lubricator introduces a fine mist of oil into the air stream, reducing friction and wear on pneumatic tools and machinery.
- Air Filtration – Removes dust, dirt, and moisture
- Pressure Regulation – Maintains stable and adjustable air pressure
- Automatic Lubrication – Reduces friction and wear on pneumatic tools
- Modular Design – Easy installation and maintenance
- Durable & Compact – Built for industrial use with a space-saving design
- Energy Efficient – Reduces pressure drops and optimizes air usage
- Extended Equipment Life – Prevents clogging, corrosion, and wear
FRLs help improve air quality, extend equipment lifespan, enhance performance, and reduce maintenance costs, making them ideal for industries such as manufacturing, automation, construction, and food processing. Available in various sizes and configurations, FRLs ensure reliable, efficient, and long-lasting pneumatic operations.
For help choosing the correct ARO Filter Regulator Lubricator for your application, please call (800) 608-5210 or email info@intlairtool.com
Shop by Filters
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List Price: $271.59$199.69
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Ingersoll Rand
ARO F35121-421 Filter | 1000 Series | 1/4" Port Size | Auto Drain | Metal Bowl | 49 SCFM
List Price: $66.96$49.24 -
Ingersoll Rand
ARO C38331-610 2-Piece FRL Combination Unit | 2000 Series | 3/8" Port Size | Relieving | Metal Bowl with Gauge | 96 SCFM
List Price: $376.96$277.18 -
Ingersoll Rand
ARO P39124-620 Relieving Piggyback Filter-Regulator | 1000 Series | 1/4" Port Size | Metal Bowl with Gauge | 47 SCFM
List Price: $86.96$63.94 -
Ingersoll Rand
ARO C38231-800 3-Piece FRL Combination Unit | 1500 Series | 3/8" Port Size | Relieving | Polycarbonate Bowl with Gauge | 85 SCFM
List Price: $344.93$253.62 -
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Ingersoll Rand
ARO PR4031-100 Precision / Air Regulator | 3/8" Port Size | Relieving | Standard Knob | 2 - 120 PSIG | 14 SCFM
List Price: $276.79$203.51 -
Ingersoll Rand
ARO R37341-400 Relieving Regulator | 2000 Series | 1/2" Port Size | Standard Knob Control | 210 SCFM
List Price: $88.81$65.29 -
Ingersoll Rand
ARO F35351-400 Filter | 2000 Series | 3/4" Port Size | Manual Drain | Polycarbonate Bowl with Guard | 216 SCFM
List Price: $160.99$118.37 -
Ingersoll Rand
ARO L36331-120 Lubricator | 2000 Series | 3/8" Port Size | Metal Bowl | 85 SCFM
List Price: $132.04$97.09 -
Ingersoll Rand
ARO F35121-300 Filter | 1000 Series | 1/4" Port Size | Manual Drain | Polycarbonate Bowl with Guard | 49 SCFM
List Price: $77.23$56.78 -
Ingersoll Rand
ARO F35581-411 Standard Filter | Super-Duty Series | 1/2" Port Size | Auto Drain | Metal Bowl | 1,280 SCFM
List Price: $1,172.57$862.18 -
Ingersoll Rand
ARO C38121-600 2-Piece FRL Combination Unit | 1000 Series | 1/4" Port Size | Relieving | Polycarbonate Bowl with Gauge | 44 SCFM
List Price: $186.33$137.00 -
Ingersoll Rand
ARO P39224-604 Relieving Piggyback Filter-Regulator | 1500 Series | 1/4" Port Size | Polycarbonate Bowl with Gauge | 72 SCFM
List Price: $188.29$138.44 -
Ingersoll Rand
ARO C38221-811 3-Piece FRL Combination Unit | 1500 Series | 1/4" Port Size | Relieving | Metal Bowl with Gauge | 61 SCFM
List Price: $388.55$285.69 -
Ingersoll Rand
ARO R37331-420 Non-Relieving Regulator | 2000 Series | 3/8" Port Size | Standard Knob Control | 179 SCFM
List Price: $98.56$72.47 -
Ingersoll Rand
ARO F35231-400 Filter | 1500 Series | 3/8" Port Size | Manual Drain | Polycarbonate Bowl with Guard | 107 SCFM
List Price: $87.40$64.26 -
Ingersoll Rand
ARO F35121-420 Filter | 1000 Series | 1/4" Port Size | Manual Drain | Metal Bowl | 49 SCFM
List Price: $53.37$39.24 -
Ingersoll Rand
ARO C38341-600 2-Piece FRL Combination Unit | 2000 Series | 1/2" Port Size | Relieving | Polycarbonate Bowl with Gauge | 120 SCFM
List Price: $356.53$262.15 -
Ingersoll Rand
ARO P39344-100 Relieving Piggyback Filter-Regulator | 2000 Series | 1/2" Port Size | Polycarbonate Bowl | 172 SCFM
List Price: $178.23$131.04
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