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Pro-Mark Utility Supply, Inc. is a leading manufacturer of pipeline markers, utility signs and cathodic protection test stations.

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Dome Marker PostCABLE & PIPELINE MARKER The PM-303 Dome Marker Post is a Cable and Pipeline Marker used as a Warning Sign to mark underground utilities.  The PM-303 is a Right … View
Flexible Utility MarkerCABLE & PIPELINE MARKER The PM-301 Flexible Utility Marker is an Identification Sign used to mark underground utility lines.  Like our PM-303 Dome Marker Post, this Utility Marker is … View
Poly SignsPro-Mark Poly Signs are made from specially formulated (HDPE) High Density Polyethylene with UV inhibitors and are 100% recyclable.  The signs are resistant to chemicals, … View
DecalsDecals and Tags are unavailable at this time.
PM-TS3 CP Test StationCP TEST STATION The PM-TS3 Test Station is a Terminal Enclosure to protect cathodic protection circuits or instruments also used for bonding, grounding and other line applications … View
PM-TS5 Flush Mounted Test StationFLUSH MOUNTED TEST STATION The PM-TS5 is a Flush Mounted Test Station made of specially formulated engineered grade fiber reinforced resins.  This Terminal Enclosure secures cathodic protection … View
CP Test Stations and AccessoriesTEST STATIONS AND ACCESSORIES Test Stations are made for monitoring buried items and providing an outlet to alter or manipulate chemical reactions taking place between … View
CP Junction BoxesPOLYCARBONATE JUNCTION BOXES/ENCLOSURES Pro-Mark Polycarbonate non-metallic Enclosures are designed to meet NEMA 4X standards.  Junction Boxes are durable for indoor and outdoor applications and are … View
Pavement InsertsPRO-MARK MODEL# PM-125PI PAVEMENT INSERT Height – 5 ¾” The PM-125PI Pavement Insert can be installed in areas that must have manual leak detection surveys. Designed to … View