The RotoPaX® 3 Gallon Extension is purpose-built to stack any RotoPaX® container on top of a 3-Gallon RotoPaX, 3.5-Gallon FuelpaX, or 4.5-Gallon FuelpaX. It threads directly into any RotoPaX® Pack Mount—including the Standard, DLX, or LOX—allowing you to carry more gear in less space.
Important Fitment Note
If you’re stacking a 3-gallon container on top of a 1-, 2-, or 4-gallon RotoPaX®, you’ll want the Standard Extension instead. Using the correct extension ensures proper thread engagement and secure fitment across mixed sizes.
How It Works
You’ll need a base mount in place—this extension is meant to add another container on top of an existing mounted 3-gallon pack. Simply thread it into your current Pack Mount, add your second RotoPaX®, and you’re locked in for the trail.
Why We Love This:
It solves the storage puzzle. With this extension, we can safely double-stack gear without extra mounts or wasted space. It’s a smart upgrade for anyone running larger fuel packs or looking to carry more without compromising bed, bumper, or roof space.
Features & Benefits:
• Stack & Secure – Designed to stack any RotoPaX® or FuelpaX container on top of a 3, 3.5, or 4.5-gallon base
• Universal Compatibility – Works with all RotoPaX® mounts: Standard, DLX, and LOX
• Maximize Storage – Double your fuel or gear capacity with zero added footprint
• Trail-Tested Durability – Made in the USA from tough, corrosion-resistant materials
• Correct Fitment Matters – If stacking on top of a 1-, 2-, or 4-gallon RotoPaX®, use the Standard Extension
Presented by Overland Kitted
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