Welcome to        ProMark

ProMark Utility Supply, Inc. is a leading manufacturer of Pipeline Markers, Marker Posts and Utility Signs. We also manufacture a complete line of Cathodic Protection Test Stations and accessories. Our products are made to perform, identify, prevent damage and dangerous accidents. ProMark Markers and CP Test Stations are available through distributors worldwide.

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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