VEVOR Diesel Exhaust Fluid (DEF) Nozzle — 3/4-Inch Barb Blue, 11.6 GPM Auto-Shutoff

The VEVOR 3/4-inch barb diesel exhaust fluid (DEF) nozzle is a heavy-duty auto-shutoff dispenser that delivers up to 11.6 gallons per minute for reliable, splash-free filling of urea and similar industrial fluids.

Built for fleet, workshop, and farm environments, this compact blue nozzle combines a 3/4-inch (19 mm) barb connection with a 3-speed trigger lock and automatic shutoff to make transfers faster and safer. Its flow capacity and durable construction suit frequent use with DEF and compatible industrial liquids, while the ergonomic trigger and lock settings help control dispensing volume and prevent overfill or spills.

How does this nozzle improve filling efficiency?

The nozzle’s high flow rating (up to 11.6 GPM) reduces downtime during bulk fills. The auto-shutoff feature and 3-speed trigger lock let operators manage flow without constant supervision, speeding repeat tasks and limiting waste.

• 11.6 gallons per minute maximum flow for fast transfers
• Three trigger lock positions for low, medium, and high flow control
• Automatic shutoff cuts flow when the tank is full to reduce spills
• 3/4-inch (OD 19 mm) barb fits standard hose setups for quick hookups

Is this nozzle compatible with DEF and other industrial fluids?

This dispenser is designed for urea-based diesel exhaust fluid and many similar liquids used in industrial settings. Materials and construction are selected to resist common DEF corrosion and degradation, but always verify chemical compatibility for specialized fluids.

• Specifically intended for urea/DEF applications and general industrial liquids
• Corrosion-resistant finish for extended service life in harsh environments
• Barb connection fits common 3/4" ID hose styles used for DEF transfer
• Not recommended for strong acids or solvents without compatibility check

How easy is it to install, operate, and maintain?

Installation is straightforward: push a 3/4-inch hose onto the barb and secure with a clamp. Operation is intuitive—press the trigger and set the lock for continuous flow; the nozzle will automatically stop when the receiving tank reaches capacity. Routine upkeep is minimal and focused on keeping seals and the spout clean.

• Simple push-on 3/4" barb hose connection with clamp recommended
• Ergonomic trigger with three lock positions for hands-free dispensing
• Auto-shutoff mechanism reduces need for constant monitoring
• Low-maintenance design; periodical cleaning and seal inspection advised

What safety or operational features should users know?

The nozzle offers several practical safeguards to protect operators and equipment: an automatic shutoff prevents overfilling, and the trigger lock reduces accidental discharge. The spout and body are shaped for stable handling and clear sight into the fill point.

• Automatic shutoff reduces spill risk and fluid waste
• Three-speed trigger lock prevents unintended full-pressure flow
• Durable construction resists everyday workshop wear and DEF exposure
• Bright blue finish improves visibility in service bays and storage

Who is this for? The VEVOR 3/4-inch barb DEF nozzle is a practical choice for fleet managers, maintenance technicians, farm operators, and small industrial facilities that refill urea tanks or similar reservoirs regularly. It fits routines that demand speed and control—ideal for users who need a dependable, low-maintenance dispenser able to handle high-volume transfers while minimizing spills and downtime.