Devaux Tungsten Nymph Fly JBNT04-B

Devaux Tungsten Nymph Fly JBNT04-B stands out as a must-have reference for modern fly fishing. Designed with remarkable precision and reflecting Devaux’s craftsmanship, this artificial fly combines innovation, effectiveness and high quality to meet the expectations of the most demanding anglers. With premium components and a design inspired by naturalistic observation, it delivers consistent results across all watercourses.

• Beadhead tungsten construction for rapid sink rate


• High-strength synthetic materials for increased durability


• Careful hand-tying preserving hydrodynamic balance


• Premium hook with long-lasting sharpness


• Suitable for river and reservoir fishing

The Devaux JBNT04-B nymph fly shines through multiple advantages. Its exceptional realism faithfully reproduces aquatic larvae highly prized by trout and grayling. The tungsten bead increases sinking speed, ensuring the fly quickly reaches feeding zones even in strong currents. Its robustness allows multiple outings with the same imitation without premature wear. Additionally, the choice of materials and proportions results from careful observation and testing across different river types. This balance is felt on the cast: the presentation remains natural and discreet, maximizing strikes.

To fully exploit the potential of the JBNT04-B Devaux nymph, use a fine leader and an imitation suited to the watercourse profile. This fly excels with tight-line nymphing techniques or natural drift fishing. Pairing with a fluorocarbon tippet significantly increases presentation stealth and effectiveness. Vary the actions (light twitches or following it down the water lane) to trigger strikes from wary fish. Thanks to its versatility, it is suitable for both novice and expert anglers.

“I used the JBNT04-B from its release in 2025 and was amazed by its sink rate and consistency of results, even in tough conditions. Its longevity and flawless finish once again confirm Devaux’s seriousness. A fly to always have in your box!”

FAQ and Additional Information :

• When to use the JBNT04-B? Usable all season long, particularly effective on mid-mountain rivers and during high flows.


• Is it suitable for beginners? Yes, its ease of use and durability make it ideal for all skill levels.


• How to care for it? Rinse in clean water after each outing and air dry to preserve its effectiveness.

Choose the Devaux Tungsten Nymph Fly JBNT04-B to maximize your fishing sessions and enjoy a reliable, durable and high-performing imitation. A top choice to stock your fly box and approach every river with confidence.