GP 1/4" MPT 0° 4.0 Pressure Washer Spray Nozzle

Solid Stream Precision Nozzle for Maximum Cleaning Impact

The General Pump 1/4" MPT 0004 Pressure Washer Spray Nozzle is a high-performance nozzle designed for specialized cleaning applications that require concentrated power and maximum precision. Engineered with a 0° solid stream spray pattern, a #4 orifice size, and a durable 1/4-inch Male NPT threaded connection, this nozzle delivers pinpoint accuracy and the highest cleaning impact per square inch.

Manufactured from hardened 400 series stainless steel for long wear life and consistent performance, the 0004 nozzle is built for professional contractors, industrial operators, and maintenance crews who demand reliability under extreme working conditions. Operating pressures from 300 to 4,000 PSI and flow rates ranging from 0.4 to 3.5 GPM ensure this nozzle is versatile enough for demanding environments while maintaining consistent spray performance.

When heavy stains, rust, or coatings need to be removed quickly and effectively, the General Pump 0004 nozzle is the professional’s tool of choice.

Designed for High-Impact Cleaning

The 0004 nozzle is part of General Pump’s professional series designed for high-impact spray cleaning:

• Solid Stream (0°): Concentrates water pressure into a single pinpoint jet for maximum force.

• Orifice Size #4: Optimized for medium-flow washers in the 0.4–3.5 GPM range.

• Operating Pressures: Performs consistently at 300–4,000 PSI, making it adaptable across various systems.

• Uniform Impact: Produces consistent cutting and cleaning force without uneven distribution.

This combination of features makes the nozzle perfect for precision cleaning tasks where other spray angles are either too broad or too gentle.

Rugged Stainless Steel Construction

Durability is at the core of the General Pump 0004 nozzle. It is manufactured from hardened 400 series stainless steel, ensuring:

• Long Wear Life: Resistant to erosion caused by continuous high-pressure water streams.

• Corrosion Resistance: Withstands harsh outdoor and industrial environments.

• Reliable Performance: Maintains spray accuracy over repeated use.

• Industrial-Grade Quality: Built for contractors, municipal maintenance crews, and industrial operators who depend on their tools daily.

For even greater durability in extreme applications, MEG-SSTC nozzles include tungsten carbide inserts to maximize erosion resistance.

Patented Fluid Dynamics Design

The General Pump WashJet-style nozzles, including the 0004, incorporate a patented orifice design to improve spray performance:

• Reduced Turbulence: Fluid dynamics minimize turbulence inside the nozzle, stabilizing flow.

• Higher Impact Per Unit Area: Concentrates water pressure more efficiently than standard designs.

• Rounded U-Shaped Orifice: Channels water into a solid stream with optimal force.

• Uniform Flow Distribution: Maintains consistency at pressures above 300 PSI.

This precision engineering ensures that the 0004 nozzle provides maximum cutting and cleaning power for the most demanding applications.

Flat Spray vs. Solid Stream

While most MEG nozzles provide flat fan spray patterns, the 0004 nozzle is unique in its 0° solid stream output. This distinction makes it one of the most specialized tools in the nozzle family:

• Flat Spray Nozzles (15°–65°): Offer broader coverage and general-purpose cleaning.

• Solid Stream Nozzle (0°): Provides unmatched intensity and pinpoint precision.

Operators typically use the 0004 nozzle for spot cleaning, stain removal, and surface preparation tasks where no other spray pattern delivers the necessary impact.

Spray Angle Options Across the MEG Line

The MEG series includes a wide variety of spray angles to meet different cleaning needs:

• 0° (0004): Solid stream for maximum cutting power.

• 15°–25°: Narrow fan for aggressive cleaning on hard surfaces.

• 40°–65°: Wider fans for general-purpose cleaning and rinsing.

• IMEG Versions: Offer extended spray angles up to 80°, ideal for critical, large-scale rinsing.

The 0004 nozzle sits at the most powerful end of this spectrum, offering focused impact and extreme precision.

Flow Performance

The General Pump 1/4" MPT 0004 nozzle is carefully designed to provide efficient flow at multiple system settings:

• Flow Range: 0.4–3.5 GPM.

• Pressure Range: 40–3,000 PSI (operates reliably up to 4,000 PSI).

• Relative Drop Size: 500–5,000 µm, ensuring adaptability to various cleaning scenarios.

• Stable Performance: Maintains consistent solid stream pattern above 300 PSI.

This flexibility allows it to be used across a wide spectrum of pressure washer systems, from light-duty to heavy industrial rigs.

Specification Summary

• Impact Group: High Impact

• Inlet Connection Gender: Male

• Inlet Connection Size: 1/4 inch

• Inlet Connection Type: Threaded (Male NPT)

• Inlet Connection Thread Type: NPT

• Spray Pattern: Solid Stream (0°)

• Orifice Size: #4

• Liquid Flow Rate Range: 0.4–3.5 GPM

• Liquid Pressure Range: 40–3,000 PSI (up to 4,000 PSI max)

• Material Composition: Hardened Stainless Steel

• Relative Drop Size Range: 500–5,000 µm

• Product Type: Nozzle

Applications Across Industries

The 0004 solid stream nozzle is used in industries that require maximum power and pinpoint accuracy:

• Construction: Removing hardened concrete splatter, prepping surfaces for coating.

• Transportation: Stripping rust and grease from steel, trailers, and heavy vehicles.

• Industrial Manufacturing: Removing adhesives, coatings, and baked-on debris.

• Municipal Services: Graffiti and gum removal from sidewalks and walls.

• Agriculture: Cleaning heavy farm machinery, plows, and harvesters.

• Surface Prep: Stripping paint or preparing steel and concrete for refinishing.

This nozzle is not for everyday wide-coverage cleaning but is indispensable for high-intensity, targeted jobs.

Safety Considerations

The 0° solid stream spray pattern of the 0004 nozzle provides the highest cleaning intensity and requires careful handling:

• Risk of Surface Damage: Can etch or gouge softer materials if used improperly.

• Protective Gear Required: Operators should wear gloves, safety goggles, and protective clothing.

• Keep Spray Moving: Do not concentrate in one spot for too long to avoid damaging surfaces.

• Operator Experience: Best suited for trained operators who understand the risks of high-pressure solid stream cleaning.

• Clear Work Area: Ensure bystanders, pets, and fragile objects are out of range.

When used responsibly, this nozzle is an extremely effective cleaning and surface prep tool.

Key Features

• High-Impact Cleaning: 0° solid stream provides maximum pressure per square inch.

• Durable Build: Made of hardened stainless steel for long wear life.

• Versatile Performance: Operates across 300–4,000 PSI with flows from 0.4–3.5 GPM.

• Precision Spray: Maintains accurate, stable performance even after heavy use.

• Professional Design: Patented fluid dynamics reduce turbulence and improve cleaning efficiency.

Comparison with Other Spray Patterns

To see where the 0004 nozzle fits within the broader nozzle system:

• 0° (0004, Red Equivalent): Maximum intensity, pinpoint accuracy, minimal coverage.

• 15° (Yellow): Narrow fan spray for aggressive cleaning on hard surfaces.

• 25° (Green): Balanced spray for versatile, everyday use.

• 40° (White): Wide fan spray for delicate surfaces and gentle cleaning.

• 65° (Black Soap Tip): Low-pressure nozzle for applying detergents.

The 0004 solid stream nozzle is the most powerful and specialized tool in the lineup, built for spot cleaning, stain removal, and surface prep.

Trusted by Professionals

The General Pump 1/4" MPT 0004 Pressure Washer Spray Nozzle is a trusted tool for professionals who demand maximum cleaning intensity, rugged construction, and reliable precision. Its solid stream design, durable stainless steel build, and patented spray engineering make it a go-to choice for the toughest cleaning challenges.

From stripping rust off steel beams to removing graffiti from concrete, the 0004 nozzle is the professional’s solution for high-impact, targeted cleaning applications.