Wilkerson M18-03-BL00B Coalescing Filter 3/8 Port

Product Description

The WILKERSON M18-03-BL00B is a coalescing filter designed to remove oil aerosols, fine particulates, and liquid water from compressed air lines. Coalescing filtration is a critical step in protecting pneumatic tools, instrumentation, and process equipment from contamination that standard particulate filters cannot capture. This unit features a 3/8 inch port and includes an integrated sight glass for quick visual confirmation of bowl condition and drainage status without removing the unit from the line. At 0.71 pounds, it is compact enough for tight panel or inline installations where space is limited.

This coalescing filter is suited for industrial, commercial, and light-manufacturing compressed air systems where clean, dry air is required downstream. Typical installation points include before pneumatic controls, spray equipment, air-operated valves, and precision instrumentation. It is appropriate for maintenance technicians and pipe fitters working on compressed air distribution systems in shop, production floor, or mechanical room environments.

Key Features

• Coalescing filter element captures oil aerosols and submicron particulates that standard filters pass
• 3/8 inch port fits common compressed air line sizes in light-duty and instrumentation circuits
• Integrated sight glass allows visual inspection of bowl level without disconnecting the unit
• Compact footprint at 2.36 inches wide and 8.36 inches tall suits space-constrained installations
• Lightweight at 0.71 pounds for easy inline or bracket mounting

Compatibility

Designed as an OEM-style replacement coalescing filter for compressed air systems requiring a 3/8 inch ported inline filter with sight glass.

Installation Notes

Coalescing filters should be installed by a qualified pipefitter or maintenance technician familiar with compressed air systems. Depressurize and lock out the air supply before installation or element service. Ensure flow direction matches the arrow marked on the filter body, and verify that downstream equipment pressure ratings are compatible with system operating pressure. Follow applicable facility compressed air system codes and manufacturer service intervals for element replacement.