External size: width 58 x height 45 x depth 40cm
Inner dimensions: width 35 x height 29 x depth 24 cm
Weight: 10.7kg
[🧊 Key Features]
●No electricity required – keeps contents cool for up to 12 days!
Thanks to a special double-wall insulation and cavity structure, it stays cold using just ice or cooling gel packs for approximately 12 days.
●Large capacity & easy to use
With an internal volume of 25 L (external dimensions: approx. 58 × 45 × 40 cm, internal: approx. 35 × 29 × 24 cm, weight: 10.7 kg), it's easy to store drink crates and bulk groceries.
●Rugged & multifunctional design
Built with durable, thick PE material and equipped with sturdy lock plates and rope/lashing slots, making it reliable even in demanding outdoor environments.
●Easy drainage & cleaning
Comes with a convenient drain valve for melted ice, making post-use cleanup quick and hassle-free.
●Perfect for various outdoor scenes
Ideal for camping, fishing, festivals, and garden parties—wherever electricity isn’t available. Its tough build also allows it to double as a seat.
[📖 Product Description]
The Petromax "Ultra Passive Cooler" 25 L is a high-performance cooler that keeps its contents cold for up to 12 days—without using electricity. Featuring multilayer insulation up to 4 cm thick, it delivers long-lasting cooling using only ice or dry ice, ensuring peace of mind even during extended outdoor trips.
Its sturdy PE body is resistant to shocks and water, making it suitable for use by lakesides, on sand, or rocky terrain. With lock plates and strap slots for securing during transport, it’s also ideal for use on boats or in vehicles.
A built-in drain valve allows for easy disposal of melted ice, simplifying the cleaning process. Designed with everyday convenience in mind, it takes the stress out of cleanup after picnics, BBQs, or fishing trips.
The rugged construction also serves as a temporary seat or a handy gear platform, adding even more versatility to your outdoor experience.
[✨ Recommended For Those Who]
-Want to keep items cool for long periods without access to electricity
-Are looking for a large-capacity, durable cooler
-Need a shock- and water-resistant design that’s safe for cars or boats
-Value easy cleaning and efficient drainage after ice has melted
The "Ultra Passive Cooler" is your dependable companion for extended outdoor adventures—keeping your drinks and food perfectly chilled while you enjoy the thrill of the great outdoors.