Product Catalog

Pro Mark Utility Supply Model PM-301

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Pro Mark Utility Supply Model PM-301 is an identification sign used to mark underground utility lines.

Pro-Mark Model PM-301 Cable and Pipeline Markers

  • Safe and easy to handle. Fiber resins will not dust and irritate skin or eyes
  • Reflective or non-reflective decals can also be installed with your custom graphic
  • information on the marker
  • Installation tools are available for easy installation


The PM-301 Fiberglass Marker is an Identification Sign used to mark underground utility lines.  Like our PM-303 Dome Marker, this Utility Marker is used to mark the following utilities: Fiber Optic Cable, Gas Pipelines, Petroleum Pipelines, Electric Lines, Water Lines, Sewer Lines and all other buried utility lines.  The PM-301 can also be used as a Highway Delineator, Boundary Marker or Trail Marker.    

The PM-301 Flat Marker is made from high impact fiberglass reinforced resins.  The Marker has a three rib profile design, will flex on impact and return to its original upright position without cracking or splintering.  The Fiber resins are embedded and are not on the surface eliminating fiber and dust from irritating skin and eyes.  Unlike traditional fiberglass Markers, the PM-301 is environmentally safe, easy to handle and is 100% recyclable. 

Our Fiberglass Marker is 3.85” wide.  Standard lengths are 66” and 72” and are available in all standard colors.  Custom reflective and non-reflective decals can be installed on both sides of the Marker to meet customer specifications and U.S. Department of Transportation regulations.  Installation tools (PM-DVR) are available and recommended for easy installation.

Marker colors:
Orange, White, Blue, Brown, Yellow, Red, Green, Purple

3.85” x 66” ; 3.85” x 72”
Custom lengths are available upon request