ULTIMATE EXPANDER® - Expandable Cup Holder up to 4.0"


ULTIMATE EXPANDER® - Expandable Cup Holder up to 4.0"


Embrace the freedom of adventure with the Hydro Expander cup holder. Designed to seamlessly integrate into your vehicle's cup holder, this innovative accessory ensures your Epic Water Filters bottle is always within reach. No more compromising on hydration due to incompatible cup holders. The Hydro Expander is here to accommodate your Epic bottle, along with other popular brands like Hydro Flask, YETI, RTIC, Nalgene, and CamelBak. Note: Does not fit 14oz or 46oz YETI Ramblers.


Rough roads ahead? No problem. The Hydro Expander's adjustable base is engineered to secure a wide range of beverage containers, ensuring your drink stays put no matter the terrain. With a 3-ring expandable base that adjusts from 2.5” to 3.75” in diameter, it's designed to fit snugly in most cylindrical cup holders.


Why leave your favorite mug behind? With the Hydro Expander, you can take the comfort of your preferred coffee mug on your travels. Its integrated mug handle slot accommodates your go-to cup, ensuring your morning brew is just a reach away. Perfect for 24oz YETI Ramblers and more. Note: 14oz YETI Rambler will not fit.


Setting up the Hydro Expander is a breeze. In just two steps and five seconds, it's ready to go, no tools required. The expandable base effortlessly adjusts to fit your car's cup holder, making it a must-have accessory for every vehicle. Plus, it's an excellent gift idea for anyone who values convenience on the road.

See a sizing guide here.

See vehicle compatibility here.

Clean Water Club Details

How the Clean Water Club works

Your Epic Water Filter replacement will automatically be delivered on your schedule. No obligation, you can modify or cancel your membership to the Clean Water Club at anytime. You save 10% and get free shipping on all filter replacements (Domestic United States).

How often should you replace filters:

  • Bottle Filter:  Every 3 to 4 Months
  • Pitcher/Jug Filter:  Every 2 to 5 Months
  • Smart Shield:  Every 10 to 14 Months
  • Sediment Filter:  Every 10 to 14 Months

See product description for more information.


Epic Security for Epic Hydration

You can finally secure your beloved Epic Water Filters bottles by your side while cruising in style. There is no longer any worrying about your bottle rolling around your car floor or spilling over. 


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