The Dunn & Watson 4WD Automatic Air Down Deflators are a simple and effective way to reduce tyre pressure before driving off-road. Instead of manually checking each tyre every few seconds, these adjustable deflators allow you to select your approximate target pressure, screw them onto your tyre valves and let them release air automatically.
With four deflators included, the kit allows you to air down multiple tyres at once, saving time at the start of a beach run, campsite track, gravel road or off-road adventure. The adjustable 10-30 PSI range suits a wide variety of 4WD conditions, from soft sand to rough corrugations and low-speed touring tracks.
The compact design makes the kit easy to store in your glovebox, recovery kit, canopy drawer or touring setup. A zip pouch is included to keep all four deflators together and protected between trips.
These deflators are made for fast, practical off-road air down use. They are not intended for exact vehicle tuning or precision pressure balancing. A normal tolerance of approximately +/- 2 PSI should be expected, and final tyre pressures should always be confirmed with a reliable tyre pressure gauge before driving.









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