If you've spent any time in overlanding forums, you've seen the recurring discussion: are Wavian jerry cans actually worth the price premium over budget alternatives? After 18 months of use across Western Australia and the Northern Territory, here's what we found.
What Makes a NATO-Spec Jerry Can
The original Wehrmacht Einheitskanister — the design all NATO cans are based on — was developed in Germany in the 1930s. The design priorities were: carry 20L of fuel, stackable without a rack, operable with one hand, robust enough to survive military logistics. The NATO spec is still active and specifies:
- 1.2–1.5mm cold-rolled steel construction
- Three-handle configuration for one or two-person carry
- Lever-lock spout with integrated air vent
- Embossed X-brace panels for rigidity without weight
- Weld seam pressure tested
Budget steel cans often look similar but use thinner steel (0.8–1.0mm), have less robust seals, and aren't pressure tested. Plastic jerry cans are cheaper and lighter but permeate vapour, degrade under UV, and shouldn't be used for petrol in a hot climate.
Wavian Quality in Practice
The Wavian 20L (made in Estonia, one of two NATO-contract manufacturers) passed every real-world test we threw at it:
Seal integrity over 18 months: Zero leaks from the lever-lock cap or body seam. The rubber seal stayed pliable even after repeated heat cycles in 40°C+ ambient temperatures. We opened and resealed the can more than 50 times without seal degradation.
Structural integrity on corrugations: 3,000+km of corrugated outback roads, mounted on a Hayman Reese rear bar carrier. The can shows minor cosmetic scratches and one small surface rust spot where the bracket contacts the body. No structural deformation, no dents at the embossed braces, and the handles remain solid.
The spout: The NATO flex spout is the best part. It's a telescoping flexible steel tube that extends to reach deep into a vehicle filler neck, with a built-in air vent that lets you pour a full 20L without tilting and without spillage. We timed it: approximately 60 seconds to pour a full 20L can cleanly. The spout locks onto the can securely and doesn't rattle loose on rough tracks.
Stacking: Four 20L cans stacked two-high, secured to a tray with a single strap, survived the entire Gibb River Road with zero movement.
Criticisms
Weight: A full 20L Wavian weighs approximately 18.5kg. That's manageable for most adults but awkward to handle solo in cramped conditions. The three-handle design helps, but it's still a heavy item at full capacity.
Price: At $85–$95 per can, Wavian is 2–3x the price of budget alternatives. If you're buying four cans for a large build, that's a significant outlay. The quality difference is real, but it requires upfront investment.
Colour-coding isn't universal: The NATO standard (red/petrol, yellow/diesel, green/water) applies to military use. Civilian Wavian cans come in red regardless of intended fuel. Label your cans clearly.
Comparison to Alternatives
Scepter (Canadian military-spec): Similar quality, slightly different spout design. Marginally cheaper in some markets. Both are legitimate NATO-spec cans; it comes down to availability.
Budget steel cans ($25–35): Thinner steel, less robust seals. Fine for occasional use, not for repeated outback trips. We've seen seals fail after 18 months on budget cans that were stored correctly.
Plastic (Jerrican-style) cans: Don't use plastic for petrol in hot climates. Vapour permeation, UV degradation, and seal quality are all significantly worse than steel for fuel storage above 30°C.
Verdict
The Wavian NATO Jerry Can 20L is the best jerry can available for serious Australian overlanding. If you're doing remote trips where fuel availability is uncertain, the quality of your fuel storage matters. The price premium over budget alternatives is justified by seal longevity, structural integrity, and the quality of the included spout.
We'd buy them again. We'd recommend them to anyone doing more than occasional day trips.
Buy genuine Wavian NATO jerry cans at RV Parts Giant.