Conduit Markers | McMaster-Carr

	Character Height Character Height

	Material Material

	Message Message

Compressed Air 80 PSI

Compressed Air 120 PSI

Condenser Water Return

Condenser Water Supply

Domestic Hot Water
Return

Domestic Hot Water
Supply

Fire Protection Water

	Message Type Message Type


Identification	Blank

Made to Order

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Color Color

	Mount Type Mount Type


Wraparound	Adhesive

Hanging	Screw

Magnetic

	Visibility Visibility

Standard

Reflective

Glow-in-the-Dark

	Character Color Character Color

	Black		White
	Blue		Red
	Yellow		Orange
	Gold

	Character Type Character Type

	Shape Shape


Rectangle	Square

Circle	Octagon

	Width Width

	Thickness Thickness

	For Use Outdoors For Use Outdoors

Yes

	Language Language

English

Spanish

English/Spanish

	Message Color Message Color

	Black
	White

	Height Height

	For Minimum Pipe OD For Minimum Pipe OD

1/2"

	For Pipe OD For Pipe OD

	Flow-Direction Arrow Flow-Direction Arrow

Yes

	Maximum Temperature Maximum Temperature

3,719 Products

Pipe Markers

Adhesive-Back Pipe Markers

Apply directly onto clean, dry pipes for clear identification of contents.

Write-On Adhesive-Back Pipe Markers

Use a permanent marker to label the contents of a pipe. Apply directly onto clean, dry pipes.

Made-to-Order Adhesive-Back Pipe Markers

Specify the message you need to label the contents of a pipe. Apply these markers directly onto clean, dry pipes.

Applicators for Adhesive-Back Pipe Markers

Roll adhesive-back pipe markers onto overhead pipe, tube, duct, or conduit without taking a single step up a ladder.

Snap-On Pipe Markers

These markers coil around pipes so they stay in place without adhesive.

Write-On Snap-On Pipe Markers

Use a permanent marker to label the contents of a pipe. These markers coil around pipes so they stay in place without adhesive.

Made-to-Order Snap-On Pipe Markers

Specify the message you need to label the contents of a pipe. These markers coil around pipes so they stay in place without adhesive.

Washdown Pipe Markers

These fade-resistant pipe markers withstand detergents used in high-pressure cleaning.

Made-to-Order Washdown Pipe Markers

Specify the message you need to label a pipe. These fade-resistant pipe markers withstand detergents used in high-pressure cleaning.

Write-On Washdown Pipe Markers

Use a permanent marker to label the contents of a pipe. These fade-resistant pipe markers withstand detergents used in high-pressure cleaning.

Reflective Pipe Markers

Identify pipe contents in low-light conditions.

Made-to-Order Reflective Pipe Markers

Specify the message you need to label the contents of a pipe in low-light conditions.

Write-On Reflective Pipe Markers

Use a permanent marker to label the contents of a pipe. They are reflective so they improve visibility in low-light conditions.

Corrosion-Resistant Pipe Markers

Engrave a message and then permanently affix the markers to pipes. Made of stainless steel, these markers withstand heat, chemicals, and corrosion so they are ideal for harsh environments.

Tie-On Cable Markers

Slide individual markers onto a plate, then attach the plate to a cable using ties.

Plastic Write-On Tags

Tags are vinyl. Write on them with a permanent marker.

Smudge-Resistant Plastic Write-On Tags

These tags have a matte surface so writing won't smudge or rub off accidentally. Write on them with a permanent marker.

Weather-Resistant Cardstock Write-On Tags

An aluminum laminate protects these tags for outdoor use. Writing on these tags will leave impressions that are visible, even if the ink wears away.

Smudge-Resistant Cardstock Write-On Tags

These tags have a matte surface so writing won't smudge or rub off accidentally.

Choose-a-Color Metal Engraving and Stamping Tags

Color code equipment and inventory.

Plastic Engraving Tags

Plastic tags withstand mild acids and are more corrosion resistant than metal tags.

Blank Plates

Choose-a-Color Metal Engraving and Stamping Plates

Identify equipment, enclosures, or other areas at a glance.

Write-On Plates

These plates have a smudge proof surface that you can write on with permanent marker.

Adhesive-Back Characters

Choose only the characters you need.

Adhesive-Back Character Sets

Choose a range of characters.

Easy-Install Adhesive-Back Character Sets

These sets come already aligned on a sheet that peels away to ensure even spacing.

Made-to-Order Adhesive-Back Character Messages

Specify the messages you want and they come already aligned on a sheet that peels away to ensure even spacing.

Quick-Align Adhesive-Back Characters

Choose only the characters you need.

Quick-Align Adhesive-Back Character Sets

Choose a range of characters.

Reflective Adhesive-Back Characters

Choose only the characters you need.

Reflective Adhesive-Back Character Sets

Choose a range of characters.

Glow-in-the-Dark Adhesive-Back Characters

Expose these characters to ambient light and they stay visible in the dark.

Laminated Adhesive-Back Character Sets

Choose a range of characters.

Bundling

Choose-a-Color Cable Ties

Identify bundles at a glance.

ID Tag Cable Ties

Take the guesswork out of identifying material—use the attached tag to label the bundle.

Choose-a-Color Cable Tie Assortments

Identify bundles at a glance.

Aluminum Cable Ties

Stamp or emboss these ties to identify material.

Layout Marking and Drafting Tools

Center-Locating Punches for Curved Surfaces

Locate and mark the centerline on rods, tubes, and pipes, lay out keyways, and establish angles for connections.

Pipe Contour Transfers

Probes take the shape of a pipe joint so you can transfer the exact outline to the pipe before you cut.

Contour Transfers

Transfer contours, patterns, and shapes for applications such as fitting floor tile and installing pipe insulation.

Pipe Contour Transfer Markers

Lay out pipe and structural steel for any type or size of pipe fitting—elbows, tees, and wyes of all angles.

Pipe Size Rulers

Measure outer diameter and mark lines around pipe.

Pipe Flange Aligners

Stepped Pipe Flange Aligner Pins

Each step on these aligner pins matches common bolt holes on pipe flanges, so they're more precise than conical aligner pins and don’t require nuts. Press the pair of pins into mated flanges to make sure the flanges are aligned.

Pipe Flange Aligner Pins with Horizontal Level

Ensure horizontal alignment of pipe flanges with a level rod that runs between two alignment pins.

Pipe Flange Aligner Pins

Insert a pair of these nut-and bolt pins into adjacent flange holes and tighten to align flanges before connecting two pipes.

Pipe Flange Aligners with Protractor

Line up two pipe flanges and determine pipe angle with the included nut-and bolt pins, level, and protractor.

	Green
	Yellow
	Orange
	Blue
	Red
	White
	Silver
	Gray
	Fluorescent Blue
	Fluorescent Green
	Fluorescent Orange
	Fluorescent Pink
	Fluorescent Yellow
	Purple
	Black
	Pink
	Off-White
	Green/Black
	Green/Purple
	Green/Red
	Green/White
	Green/Yellow
	Orange/Black
	Orange/Purple
	Orange/Red
	Orange/White
	Orange/Yellow