Waterline markers allow workers, first responders, and other essential personnel to figure out which pipes carry what materials. In fast-paced environments, knowing the contents of your pipes is crucial to a safe, productive facility. Since OSHA requires organizations to apply pipe marking standards, waterline markers are a necessary form of visual communication.

Waterline markers come in a variety of OSHA-compliant colors. These visual markings cover chilled water, hot water supply, fire sprinkler water, and so much more. Labels are resistant to smudges, smears, chemical and water stains, and are easy to install and remove.

Browse waterline markers below. Looking to customize labels or signs? We’ve got you covered. We’re happy to create specialized labels and signs to meet your needs. Give us a call at 866-777-1360!

  • City Water Pipe Marking Labels Keep employees and contractors informed of which pipe is which with one of our pre-printed pipe marking labels. These stickers indicate a pipe contains city water. Printed using our top-selling LabelTac® Industrial... More details

  • Pipe Labels: Fire Sprinkler Water Industrial facilities can be dangerous, and pipe marking labels are needed to keep employees and maintenance personnel safe. This label is for pipes containing Fire Sprinkler Water. Our pre-printed Fire Sprinkler Water... More details

  • Pre-Printed Pipe Marking Labels: Chilled Water Return In many plants, factories, and production facilities, it is necessary to identify different water sources. This chilled water return label will display directional and source information to assist... More details

  • Chilled Water Supply Pre-Printed Pipe Marking Labels In warehouses, factories, and production facilities, it is necessary to identify different water sources. This chilled water supply pipe marker will communicate source and flow direction information... More details

  • Pipe Labels: Hot Water Supply Industrial facilities can be dangerous, but properly labeling pipes can help keep employees and maintenance personnel safe. Our pre-printed Hot Water Supply labels clearly indicate what a pipe contains. Printed using... More details

  • Water Pipe Labels Some workplaces are dangerous, and these Water pipe labels will ensure people know what pipes contain so they can behave accordingly. These pre-made marking labels make it easy and cost-effective to label your pipes and stay... More details

    Water

    $1.70
  • Cold Water Pipe Marker Industrial facilities can be dangerous places, but labeling pipes can help keep employees and maintenance personnel safe. Our pre-printed Cold Water pipe marking label quickly communicates the contents of a pipe. Printed using... More details

  • Pipe Labels: Hot Water Return Industrial facilities can be dangerous places, but properly labeling pipes can help keep employees and maintenance personnel safe. Our pre-printed Hot Water Return labels clearly specify what a pipe contains. Printed using... More details

  • Summary Non-Potable Water lines (water that is not appropriate for consumption) should be labeled, along with other pipes in your facility, per OSHA regulations. Once applied, our pre-made pipe labels are resistant to water, chemicals, and the elements,... More details

  • Summary Potable water pipes (water that is suitable for consumption) must be labeled. Our pre-made labels make this easy. They are tough and last years even in outdoor applications. Once applied they are UV, water, chemical, and grease resistant... More details

  • Condenser Water Pipe Marking Labels In any factory or manufacturing facility, it is important to know the difference between a water pipe and one used for condensates. Our pre-made pipe marking labels are printed with "condensate."  We offer lots... More details

  • Pipe Labels: Hot Water Industrial facilities can be hazardous, and properly labeling pipes can help make the work environment safer. These pre-printed Hot Water labels quickly communicate what pipes contain. Printed using our top-selling... More details

  • Pipe Labels: Fire Protection Water Industrial facilities can be dangerous, but pipe marking labels can help keep employees and maintenance personnel safe. This label is for pipes that contain Fire Protection Water. Our pre-printed Fire Protection Water... More details

  • Summary Our Process Water Supply labels are the toughest labels of their kind around. They are thermally pre-printed on a durable indoor/outdoor vinyl, capable of resisting water, UV, chemicals, greases, and extreme temperatures. Features: Made from... More details

  • Cold Water Supply Pipe Marking Labels Keep everyone informed of cold water supply pipe contents with our pre-printed pipe marking labels. These stickers come pre-made with the text "Cold Water Supply," but they can also be customized. Pipe markers are... More details

  • Pre-Printed Domestic Hot Water Pipe Marking Labels Keep employees and contractors informed of which pipe has Domestic Hot Water in it with these pipe markers. We use LabelTac® 4 Industrial Label Printers to create these pre-made pipe marking... More details

  • Pipe Marking Labels: Chilled Water Although it is one of the less-dangerous materials running through the pipes in your facility, this Chilled Water pipe label will help employees differentiate between the "safe" pipes and the dangerous substances... More details

  • Summary OSHA regulations require all pipes, including pipes containing process water, to be labeled so people can quickly identify the pipes' contents. Our labels are tough - once applied, they are resistant to many industrial hazards like water,... More details

  • Pre-Made Deionized Water Pipe Marking Label These pipe marking labels come with the text Deionized Water, but can be customized to whatever text you would like. Made with a LabelTac® Industrial Label Printer, these pre-made pipe marking labels... More details

  • Pre-Printed Domestic Water Pipe Marking Labels If you need to mark a domestic water pipe, our pre-printed markers are great for conveying important information to employees and visitors to your facility. We make these labels with a... More details

  • Pipe Labels: Heating Water Factories can be dangerous places, and pipes must be properly labeled to help keep employees and maintenance personnel safe. These Heating Water pipe labels quickly communicate what a pipe contains. Printed using our... More details

  • Boiler Feed Water Pipe Marking Label With all of the pipes and pneumatic lines running through your factory or production plant, it is important to mark what is what. Our Boiler Feed Water pipe labels will help communicate what is inside a pipe... More details

  • Summary Do you need to label your Process Water Return lines? Our pre-made pipe marking labels make it easy to label these and other other pipes. Once applied, these labels are UV, water, chemical, and temperature-resistant. Need more information or... More details

  • Summary Do you have have recirculated hot water pipes that need to be labeled? Don't mess with stencils or cheap labels. Our labels are the toughest around and can withstand extreme temperatures and damage from UV rays, water, greases, and other... More details

  • Waste Water Pipe Labels Some workplaces are dangerous, and these Waste Water labels will ensure people know what pipes contain so they can behave accordingly. These pre-made pipe marking labels make it easy and cost-effective to label your... More details

  • 140° Hot Water Pipe Label Our 140° Hot Water pipe labels inform workers of what temperature of water is in a pipe. Application is easy: simply peel and stick to a clean, dry surface. Available with left-facing arrows, right-facing... More details

  • Pipe Labels: Heating Water Return Industrial facilities can be hazardous places, and pipe marking labels are needed to help keep employees and maintenance personnel safe. Our pre-printed Heating Water Return labels quickly communicate what pipes... More details

  • Pipe Labels: Filtered Water Industrial facilities can be dangerous, and pipe marking labels are required to help keep employees and maintenance personnel safe. This is especially true when it comes to filtered water vs contaminated water. Our... More details

  • Summary Potable Water is water that's safe for consumption. With our pre-printed Potable Cold Water pipe marking labels, simply peel and stick to any clean and dry surface. Once applied, our labels are resistant to water, oils and greases, UV rays, and... More details

  • Pre-Printed Cooling Water Pipe Marking Label It is important, under OSHA and ANSI standards, to label your pipes, whether they contain corrosive acids or cooling water. Our pipe labels are made with a LabelTac® Industrial Label Printer, ensuring... More details

  • Summary Potable water is water that's safe for consumption. Our pre-made Potable Hot Water pipe labels make it easy to label these pipes. Once you determine the correct size labels for your pipes, all you need to do is peel the backing off the label and... More details

  • Tempered Water Pipe Labels A factory can be a dangerous place. Make sure to properly label pipes to help increase safety. Tempered water labels will ensure people know what these pipes contain. These pre-made pipe marking labels make it easy... More details

  • Soft Water Pipe Labels Inform workers about which pipes contain soft water with these pipe marking labels. Printed using our top-selling LabelTac® Industrial Label Printers, these pre-made pipe marking labels make it easy and... More details

  • Well Water Pipe Labels Some workplaces are dangerous, and these Well Water pipe labels will ensure people know what pipes contain so they can behave accordingly.  These pre-made marking labels make it easy and cost-effective to label... More details

  • Pre-Printed Cold Water Return Pipe Marking Label Keep employees and contractors informed of pipe contents with our pre-printed pipe marking labels. These stickers come pre-made with Cold Water Return printed on them, but they can also be customized... More details

  • 110° Hot Water Pipe Label Warehouses and industrial facilities can be hazardous to your safety, especially ones using hot water.  Our 110° Hot Water  pipe labels will indicate what temperature of water is in the pipe. Easy to... More details

  • Pre-Printed Circulating Water Pipe Marking Labels Many industrial workplaces have pipes running throughout their facilities, and it is important to label these pipes so people can quickly find out their contents. Our Circulating Water label communicates... More details

  • Pipe Labels: Heating Water Supply Industrial facilities can be potentially hazardous places, and properly labeling pipes helps create a safer working environment. Our pre-printed Heating Water Supply labels quickly communicate what pipes contain... More details

  • Distilled Water Pipe Marking Label In any factory or manufacturing facility, it is important to know the difference between a water pipe and one used to transport chemicals and other substances. These pre-made pipe marking labels are printed with... More details

  • 110° Hot Water Return Pipe Labels Industrial plants can be dangerous, especially those using hot water. Our 110° Hot Water Return pipe labels will indicate what temperature of water is in the pipe. Application is easy: simply peel and... More details

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