Technical Information

Part Name MB 133 Standard
Height 42“ / 1069 mm
Diameter 52 ½“ / 1334 mm
Air Weight 185 lbs / 84 kg
Total Displacement 2645 lbs / 1200 L
Wall Thickness ¼“ / 6mm
Materials Used Polyethylene, EPS Foam, Galvanized Steel

Available Options

Optional Items Custom Graphics, Custom Colours, Reflective Banding.
Standard Items EPS foam filled
Colour Options Transport Canada Compliance, U.S. Coast Guard Compliance, Custom Colours

Product Description

For decades, NPL has manufactured some of the largest hardshell navigational buoys which have been utilized by coast guards throughout the world. Drawing upon that experience and knowledge we have created a line of polyethylene buoys that offer high visibility, durable materials, and superior connections for securement. Our mooring buoys are designed to meet federal requirements and reduce deployment costs. Unlike many of our competitors our mooring buoy can be secured topside (rather than only at a potentially fouled submerged connection) for operator safety and convenience. They come with a galvanized rod or hawser style chain attachment option.


High strength galvanized steel hardware:
Highest quality UV stabilized, seamless one-piece construction with uniform wall thickness:
Refined EPS foaming process with over 20 years of experience:
Utilizes the same technology and manufacturing process as offshore navigation buoys and industrial aquaculture buoys:


- Corrosion resistant / Superior strength
- Robust life expectancy to 15+ years
- Solid, one-piece foam fusion ensures reduced risk of sinking and environmental contamination:
- Commercial grade and built for harshest operating environments

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