DuraMark DM Duct / HVAC Markers



SpecMark Snap On (sizes AA-F) are pre-coiled and pretensioned printed sheet that are designed to snap around the pipe and stay there without need of adhesives. Sizes F*,G*, H* are supplied flat and are installed using factory supplied UV stabilized black nylon ties.


• Complies 100% to ASME (ANSI) A13.1-2020 Scheme for the Identification of Piping Systems for color and for color field width when used on size compatible piping. • Complies with ANSI Z535.1 Safety Color Code. • Complies with standards set forth by the South Coast Air Quality Management District (SCAQMD) Rule # 1168 • Complies with the Green Seal Standard, GS-36 for Commercial Adhesives pertaining to Volatile Organic Compounds (VOC). • Meets UL94-Test for Flammability of plastic materials 94V-0


• Solid Brass. • Includes interlocking link. • 4.5” in length • Great for hanging valve tags, APT (Accident Prevention Tags) tags & lockout and maintenance notices. • Chains are sold and supplied in boxes of 100 chains.


• Solid Brass #6 Beaded chains is a highly diverse and flexible means of attachment for valve tags, APT (Accident Prevention Tags) tags and lockout and maintenance notices. • Chain is 4.5” in length including an interlocking link. • Chain is sold and supplied in boxes of 100 chians.

ASME (ANSI)A13.1 -2020 Color Standards

ASME (ANSI) A13.1-2020 Length of Color Field Standard

Fluid Service Background Color
Fire Quenching Fluids Safety Red
Toxic and Corrosive Fluids Safety Orange
Flammable and Oxidizing Fluids Safety Yellow
Combustible Fluids Safety Brown
Potable, Cooling, Boiler Feed, Other Water Safety Green
Compressed Air Safety Blue
To Be Defined By The User Safety Purple
To Be Defined By The User Safety White
Outside Diameter of Pipe Or Covering Length of Color Field
.75” to 1.25” 8”
1” to 2” 8”
2.25” to 6” 12”
6” to 8” 12”
8” to 10” 24”
10”+ 32”


Material Characteristics

Use & Application Solid Nickel #6 chains is a highly diverse and flexible means of attachment for valve tags, Apt (accident Prevention Tags) tags, lockout and maintenance notices.
Unit of Measure Box of 100 chains
Unit quantity 1
Unit per package 100
trade name Nickel Beaded Chain
brand name Craftmark™
COUNTRY OF ORIGIN United States of America
hts code 7315.89.1000
Moisture Resistance Excellent moisture resistance.
adhesive Not Applicable- No need for adhesive
Chemical Resistance Excellent resistance to most petroleum solvents and low aliphatic alcohols.
surface preparations Not Applicable
Service Temperature Range -40℉ to 180℉ (-40℃ to 82℃)
Indoor/Outdoor Use Can be used indoors or outdoors.
Minimum Service Temperature -40℉
Compatible Surface Types N/A
Application Temperature Not Applicable-No Set Temperature.
Average Outdoor Durability 8+ years average outdoor durability.
Abrasion Resistance Excellent abrasion resistance.
Storage Stability Indefinite storage and shelf life when stored at 70° F (21°C) and 50% max relative humidity.
Gloss 60 units (20° gloss test)

Product Dimensions

Product WEIGHT

Style/Size Overall Size Height Width
AA .375” x 4” .375” 4”
A .75” x 8” .75” 8”
B 1” x 12” 1” 8”
C 2” x 12” 2” 12”
D 3.25” x 12” 3.25” 12”
E 4.5” x 12” 4.5” 12”
F* 8” x 12” 8” 12”
G* 12” x 24” 12” 24”
H* 12” x 32” 12” 32”
Style/Size Weight
AA .375” x 4”
A .75” x 8”
B 1” x 12”
C 2” x 12”
D 3.25” x 12”
E 4.5” x 12”
F* 8” x 12”
G* 12” x 24”
H* 12” x 32”

Product Size Compatibility

Style/Size Overall Size MINIMUM OUTSIDE
Nickel Beaded Chain 4.5” in length 4.5” long
A .75” TO 1.125” .75” 1.125”
B 1.125” TO 2.375” 1.125” 2.375”
C 2.5” TO 3.25” 2.5” 3.25”
D 3.375” TO 4.5” 3.375” 4.5”
E 4.625” TO 5.875” 4.625” 5.875”5”
F* 6” TO 8” 6” 8”
G* 8” TO 10” 8” 10”
H* 10” TO 40” 10” 40”


Craftmark Pipe Marker products are sold with the understanding that the buyer will test them in actual use and determine for himself their adaptability for the intended use in a specific geographic location. Craftmark Pipe Markers warrants to the buyer that’s its products are free from defects in material and workmanship but ,limits its obligation to replacement of the product only.

This warranty is in lieu of any other warranty, expressed or implied, including, but not limited to any implied warranty of merchantability or fitness for a particular use, and of any other obligations or liability on Craftmark Pipe Marker’s part. Under no circumstance will Craftmark Pipe Markers be liable for any loss, damage, expense or consequential damages of any kind arising in connection with the use, or inability to use Craftmark Pipe Marker products.