EternArmor DEF/AdBlue Automatic Nozzle — 3/4" NPT Inlet, 1/2" Stainless Spout, 16 GPM, Auto Shut-Off

The EternArmor Automatic DEF/Antifreeze Nozzle is a corrosion-resistant, auto shut-off transfer nozzle with a 3/4" NPT inlet, 1/2" stainless steel spout, and a 16 GPM max flow for DEF, AdBlue and water-based fluids.

Built for workshops, farm yards, and mobile fueling rigs, this nozzle combines heavy-duty materials and practical features to move Diesel Exhaust Fluid (DEF), AdBlue, antifreeze, urea solutions and similar water-based fluids quickly and cleanly. Its stainless steel spout and acetal body resist corrosive additives, while the automatic shut-off and three-position hold-open clip make repetitive filling tasks faster and safer.

How does the automatic shut-off protect against overfills?

The nozzle’s automatic shut-off senses back-pressure when the tank reaches capacity and closes the flow instantly, stopping spills and reducing waste. This mechanical shut-off is reliable for repeated fills and minimizes cleanup time.

• Stops flow when tank is full to prevent spills
• Reduces fluid waste and operator intervention
• Works with pressures up to 50 PSI for consistent cut-off

Will this nozzle handle DEF, AdBlue, and antifreeze without corroding?

Yes. The combination of a stainless steel spout and acetal (plastic) body gives chemical resistance against urea-based and glycol-based fluids. Those materials are chosen to withstand regular exposure without rapid degradation.

• Stainless steel spout for corrosion resistance
• Acetal body resists common additives in DEF and antifreeze
• Suitable for temperatures from -25°C to 60°C

What flow rate and fittings does it use for quick installs?

The nozzle supports a maximum flow of 16 gallons per minute (about 60 LPM), enabling fast transfers for large tanks. It has a 3/4" NPT inlet to mate with standard pumps and a 1/2" (15 mm) spout for typical hose and tank points.

• Max flow: 16 GPM (60 LPM) for faster filling
• 3/4" NPT inlet for common pump compatibility
• 1/2" stainless spout fits most tank openings and couplers

How does the hold-open clip improve repetitive filling?

The three-notch hold-open clip locks the trigger at different positions to control flow without constant hand pressure. That reduces operator fatigue and allows hands-free topping or long fills while maintaining control over fill speed.

• Three notches provide adjustable flow-lock positions
• Locks trigger for hands-free operation during long fills
• Quick release returns to manual control instantly

Who this is for: technicians, fleet operators, agricultural users and anyone who regularly transfers DEF, AdBlue, antifreeze or water-based urea solutions will benefit from this nozzle. It suits fixed pump stations, portable transfer pumps, and on-the-go servicing where corrosion resistance, dependable automatic shut-off, and ergonomic handling matter most.