FRLs – or Filter-Regulator-Lubricators – are an integral part of any pneumatic system.

Visit the Ross Controls or Monnier page for product information or contact us for pricing.

Quality Hydraulics & Pneumatics, Inc. represents two quality brands of Filter-Regulator-Lubricators. Both Ross Controls and Monnier Incorporated have long been known for providing high quality FRL’s that can be custom fitted to optimize pneumatic system performance.

Contamination is the single largest cause of component failure. Therefore, the quality of the compressed air in the pneumatic system is an extremely important factor for both the components and system life. Quality Hydraulics offers FRLs – not only for standard applications – but also for precision and high pressure applications as well. FRLs can be specified for harsh physical or environmental conditions, precision regulation, high pressure, or extremely high filtering requirements.


  • General purpose, coalescing, oil vapor removal filters
  • Drip leg drains
  • Silencer/reclassifiers

Filters from .01 micron to the standard 5 micron required in air systems.

Internal automatic drain; optional manual drain or external automatic drain.

Available in polycarbonate material, aluminum or 316 stainless steel.


  • General purpose, right angle, reeverse flow regulators
  • Precision, remote pilot, and high-pressure regulators
  • Relief valves
  • Proportional valves

Regulators with plumbing connections from 1/8” to 1-1/2”

Repeatability +/- 0.5 psi (0.034 bar)

Up to 1000 psi supply pressure.

Available in polycarbonate material, aluminum or 316 stainless steel. 


Introduce atomized oil into the air line.

Provide lubrication to downstream mechanisms.

Available in polycarbonate material, aluminum or 316 stainless steel. 

316 Stainless Steel

A line of particulate filters, coalescing filters, regulators and filter/regulators in 316 stainless steel.

Designed to withstand caustic solutions, harsh operating conditions and other demanding applications.

All-metal construction components, including internals; made of 316 SS, making them the most impervious to any sort of degradation

  • High pressures up to 1000 psig supply
  • Special porting
  • Special mounting
  • Rugged and environmentally tough
  • Housings made from solid bar stock

The Certified Fluid Power Specialists at Quality Hydraulics will review your system’s requirements and help select and place the proper FRL to optimize your pneumatic system’s capabilities.

Get Parts, Pricing & Information

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Speak with a Certified
Fluid Power Specialist
7:30 am to 4:30 pm Central
Monday - Friday

847-680-8400 or email us

Serving Illinois, Iowa and Indiana