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Compact zinc filter-regulator with polycarbonate bowl guard, 3/8 NPT inlet, manual drain, top adjustment knob

SPEEDAIRE

SPEEDAIRE 4ZK85 Filter-Regulator 3/8 NPT 80 cfm 40 micron

SKU CH-K5J0-RPFHS

A compact filter-regulator with a 3/8 NPT inlet, 80 cfm flow and 40 micron particulate filtration for clean, regulated air supply

  • Delivers up to 80 cfm airflow for pneumatic tools
  • 40 micron particulate filter removes contaminants from air supply
  • 150 psi maximum operating pressure handles demanding applications
  • Compact zinc body with 3/8 inch NPT inlet fits tight spaces
  • Manual drain and top-mounted knob simplify maintenance and adjustment

Compact Filter-Regulator for Compressed Air Systems

This SPEEDAIRE filter-regulator combines particulate filtration and pressure regulation in a compact zinc body designed for compressed air lines. It suits workshops and industrial settings where clean, regulated air is required for pneumatic tools and equipment. The unit installs in-line with a 3/8 inch NPT female inlet and directs flow left to right.

40 Micron Particulate Filter with 80 cfm Flow

The single specification that decides fit is the 40 micron particulate filter element paired with an 80 cfm maximum flow rate. This filtration level protects downstream components from solid contaminants while the flow capacity supports multiple air tools simultaneously. The polycarbonate bowl with guard allows visual monitoring of collected debris and condensate.

For Installations Needing Combined Filtration

This unit suits installers who need both particle removal and pressure control in one compact housing with top-mounted knob adjustment. Buyers who require an integrated pressure gauge should look elsewhere as none is included. Systems demanding automatic drainage or a finer filtration rating will need a different configuration.

Highlights

  • Delivers up to 80 cfm airflow for pneumatic tools
  • 40 micron particulate filter removes contaminants from air supply
  • 150 psi maximum operating pressure handles demanding applications
  • Compact zinc body with 3/8 inch NPT inlet fits tight spaces
  • Manual drain and top-mounted knob simplify maintenance and adjustment

Specifications

BrandSPEEDAIRE

Questions about this item

What does the 80 cfm flow rating mean when the unit is installed in a compressed-air system?

It indicates the maximum volume of air the filter-regulator can pass at its rated pressure, so downstream tools receive up to 80 cubic feet per minute.

How does the 3/8 NPT inlet affect connection options and flow capacity?

The 3/8 inch National Pipe Thread female inlet accepts standard 3/8 NPT fittings and supports the unit's 80 cfm rating without reducing flow.

What mounting space and hardware are required for the compact zinc body?

The body measures 2 inches overall width and uses the inline NPT ports for installation; no separate bracket or mounting holes are provided.

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