The Fiamma Ultra-Box is a practical rear storage solution designed to suit a wide range of motorhomes.

Its generous internal space makes it ideal for carrying outdoor gear, camping accessories or bulky items you’d rather keep outside the living area.

Constructed from Fiamma’s high-quality ABS-PLUS material, the Ultra-Box is built for long-term outdoor use. It offers excellent resistance to impacts, weather exposure and UV rays, helping protect your belongings throughout the camping season and beyond.

The box features a smooth, air-assisted lid opening for easy access, even when fully loaded. Watertight foam seals help keep contents dry, while the integrated flexible luggage netting keeps items secure during travel.

Installation is versatile and straightforward. The Fiamma Ultra-Box can be mounted directly to the rear wall of a motorhome using the appropriate wall fitting kit, or attached to a compatible bike rack using the supplied mounting brackets. This flexibility makes it a popular choice for leisure vehicle owners looking to add reliable, external storage without sacrificing interior space.

Which size is right for me?

For the size of Ultra-Box you need, it largely depends on personal preference. The Ultra-Box 500 is best for the storage it provides, but may look oversized on smaller motorhomes. The Ultra-Box 320 would ultimately fit less but is a more compact package. The Ultra Box 360 gives a good compromise between the two. We have provided the dimensions of each object below.

Product Specification

Ultra Box 500

• Height Description: 70cm
• Width: 147cm
• Depth: 53cm
• Weight: 17kg
• Capacity: 500L

Ultra Box 360

• Height Description: 68cm
• Width: 147cm
• Depth:38cm
• Weight: 14kg
• Capacity: 360L

Ultra Box 320

• Height Description: 70cm
• Width: 100cm
• Depth: 53cm
• Weight: 12kg
• Capacity Description: 320L