TruDesign Load Bearing Collar – Composite Skin Fitting Support Collar

Ensure maximum strength and compliance in your marine plumbing system with the TruDesign Load Bearing Collar—a critical support component designed to reinforce skin fittings and ball valve installations.

Manufactured in New Zealand from glass-reinforced nylon composite, this collar provides exceptional mechanical strength and dimensional stability, ensuring your thru-hull fittings are properly supported under load. It is completely corrosion and electrolysis free, making it superior to traditional metal backing components.

Designed to be installed behind the hull, the load bearing collar distributes stress from hoses, valves, and external forces, reducing the risk of fitting movement, cracking, or failure—especially in high-load or safety-critical applications.

This component is commonly used in conjunction with TruDesign skin fittings and ball valves to meet installation best practices and safety standards for marine plumbing systems. It helps ensure the installation can withstand loads applied by hoses, clamps, and connected equipment over time.

Compatible with a wide range of hull materials including fibreglass, aluminium, steel, and wood, the collar is easy to install and integrates seamlessly into existing plumbing setups.

Engineered for harsh marine environments, it is resistant to fuel, chemicals, UV exposure, and extreme temperatures (-40°C to +110°C), ensuring long-term durability and performance.

Key Features

• Reinforces skin fittings & ball valves – improves installation strength
• Distributes load behind hull – reduces stress and movement
• Glass-reinforced nylon composite – strong, lightweight & durable
• Corrosion & electrolysis free – ideal for marine environments
• Improves safety & compliance – supports best practice installs
• Compatible with TruDesign systems – skin fittings & valves
• UV & chemical resistant – built for harsh conditions
• Wide temperature range (-40°C to +110°C)

Specifications

• Brand: TruDesign
• Product Type: Load bearing collar / backing support
• Material: Glass-reinforced nylon composite
• Installation: Behind hull (internal support)
• Compatibility: TruDesign skin fittings & ball valves
• Sizes Available: Matches corresponding fitting sizes (¾″–2″ typical)
• Temperature Range: -40°C to +110°C
• Use: Marine plumbing reinforcement

Ideal Applications

• Skin fitting installations (thru-hull fittings)
• Ball valve installations
• High-load hose connections
• Safety-critical marine plumbing systems

This collar is essential for ensuring long-term reliability and compliance, particularly where fittings are subject to movement or stress.

Why Buy from Barton Marine NZ?

• Trusted NZ marine plumbing specialist
• Fast nationwide delivery
• Genuine TruDesign NZ-made components
• Designed for NZ marine conditions

Pro Tip 

For best results:

• Always use a load bearing collar with ball valves and thru-hull fittings
• Install with marine sealant for watertight integrity
• Ensure collar is properly aligned and tightened to distribute load evenly