RotoPaX® 3 Gallon Pack Mount Extension

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 carr