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SKU 7010389842
Legacy SKU 75030023677
UPC 00051138570941
Product Number 3MN408DG

3M™ Diamond Grade™ signs.

  • Approved supplier to the U.S. Navy
  • Retroreflective letters and numbers used for the production of safety and emergency exit signage
  • Highly visible under ambient light and in dark conditions with retroreflected light
  • Aggressive, pressure-sensitive adhesive
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On it's way to you October 30  


Minimum Order 1 Pack
Order Increment 1 Pack
  Great for Road Safety
  Very Visible
  Fast Shipping
  Industry Low Price
Product Dimensions
Imperial Metric
Width 3 in 7.62 cm
Length 7 in 17.78 cm
Shipping Dimensions
Weight 0.5 lb
Length 9.1 in
Width 4.8 in
Height 3.6 in


  1. What is 3M™ Diamond Grade™ Ventilation Sign 3MN408DG?

    The 3M™ Diamond Grade™ Ventilation Sign 3MN408DG is a highly reflective sign made from high-quality materials that meet the most demanding regulatory requirements.

  2. What does the "THIS...OFFICER" sign mean?

    This particular ventilation sign features the message "THIS...OFFICER", signaling to those around it of an officer being present and helping maintain safe areas, such as near entrances, exits or other specific locations.

  3. How many signs are included in one package of the 7 in x 3 in size?

    Each package includes ten (10) signs sized at approximately seven inches by three inches each, providing excellent coverage for hospitals, fire departments or similar organizations.

Product Description: 3M™ Diamond Grade™ Ventilation Sign 3MN408DG, "THIS…OFFICER", 7 in x 3 in, 10/Package

The 3M™ Diamond Grade™ Ventilation Sign 3MN408DG is a high-quality signage solution designed to enhance safety and visibility in various environments. With its bold and attention-grabbing design, this sign is specifically created to alert individuals about the presence of ventilation systems. Measuring 7 inches by 3 inches, this package includes 10 signs, making it ideal for large-scale installations or multiple locations.

Constructed with 3M's Diamond Grade™ technology, these ventilation signs offer exceptional reflectivity, ensuring maximum visibility even in low-light conditions. The reflective properties of the sign make it highly effective in catching the attention of drivers, pedestrians, and workers, reducing the risk of accidents and improving overall safety. The durable construction of the sign ensures long-lasting performance, making it suitable for both indoor and outdoor use.

Easy to install, the 3M™ Diamond Grade™ Ventilation Sign 3MN408DG features a self-adhesive backing, allowing for quick and hassle-free application on various surfaces. The bold text "THIS…OFFICER" is printed on a vibrant yellow background, ensuring clear and concise communication. Whether it's for construction sites, parking lots, or industrial facilities, this ventilation sign is an essential tool for maintaining a safe and secure environment.

  • High-quality signage solution designed for ventilation systems
  • Package includes 10 signs, measuring 7 inches by 3 inches
  • Constructed with 3M's Diamond Grade™ technology for exceptional reflectivity
  • Durable construction for long-lasting performance
  • Easy installation with self-adhesive backing
  • Bold text on vibrant yellow background for clear communication
  • Suitable for indoor and outdoor use
Brochures, Catalogs & Data Sheets
  • Pdf   Brochures_navy shipboard marki