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1/4" MNPT 4,000PSI Quick Connect Brass Coupler

1/4" MNPT 4,000PSI Quick Connect Brass Coupler

Specifications

PSI

4,000

CONNECTION

1/4" MNPT

MATERIAL

Brass

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Product

Description

Reliable Connection for High-Pressure Cleaning Systems

The 1/4" MNPT 4,000 PSI Quick Connect Brass Coupler is built for reliable performance and durability in pressure washer systems. Made from solid brass, this coupler provides superior corrosion resistance and long-lasting strength while maintaining a secure, leak-free seal. Designed for both professionals and homeowners, it offers quick, tool-free connections between hoses, spray guns, and other pressure washer accessories, saving valuable time on the job.

Built for Strength and Durability

Rated for up to 4,000 PSI, this coupler is ideal for medium to high-pressure cleaning applications. Its solid brass construction resists corrosion, wear, and deformation, ensuring dependable performance even after repeated use. Brass is naturally resistant to water and detergent exposure, making this coupler a long-lasting choice for residential, commercial, and light industrial cleaning tasks.

Quick Connect Efficiency

The precision-engineered quick connect design allows for fast attachment and removal of accessories without tools. The locking collar secures tightly to compatible plugs, preventing leaks or accidental disconnections during operation. The 1/4" MNPT (Male National Pipe Thread) end threads easily into compatible female fittings, providing universal compatibility with most professional-grade pressure washer systems.

Professional Grade Performance

Smooth threading, tight sealing, and a corrosion-resistant finish make this coupler ideal for frequent use in a variety of environments. Whether you’re connecting a spray gun, hose, or wand, this fitting ensures consistent performance under pressure.

Applications

This 1/4" MNPT Quick Connect Brass Coupler is suitable for:

  • Residential and commercial power washing systems

  • Connecting hoses, wands, and spray guns

  • Vehicle, equipment, and surface cleaning

  • Construction and maintenance operations

  • Facility and property upkeep

Engineered for reliability, this coupler delivers the secure, efficient performance professionals rely on daily.

Features:

  • Rated up to 4,000 PSI working pressure

  • 1/4" MNPT (Male National Pipe Thread)

  • Quick connect for easy, tool-free setup

  • Solid brass construction for corrosion resistance

  • Compatible with most pressure washer systems and accessories

  • Provides a secure, leak-free connection under pressure

Performance You Can Count On

Durable, easy to use, and built to last—the 1/4" MNPT 4,000 PSI Quick Connect Brass Coupler ensures your pressure washer connections stay strong and reliable with every use.

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Frequently Asked Questions about Pressure Washers

How to store a pressure washer?

To ensure the durability of your heavy duty pressure washer:

  • Empty the gas tank to prevent fuel from degrading or clogging the engine.
  • Empty the pump and hoses of any remaining water.
  • Perform necessary maintenance before storage.
  • Store in a dry area.
  • Cover.

What is a pressure washer?

A power washer is a cleaning machine that uses a gasoline engine to power a high pressure water pump and nozzle. It’s used to clean driveways, decks, vehicles, outdoor furniture and more by spraying water at high PSI to remove dirt, grime, mold and other debris.Many models also come with a detergent tank for added cleaning power.

How does a power washer work?

A power washer works by drawing water from a connected hose and pumping it through a high pressure nozzle. The gas engine powers the pump which pressurizes the water and then expels it through the nozzle at high speed to clean the surface. The water pressure is measured in PSI (pounds per square inch) and the flow rate is measured in GPM (gallons per minute).Many models also feature adjustable water pressure settings to cater to different cleaning needs. BE makes pressure washing easy with models available for light jobs and heavy duty commercial cleaning projects.

Gas vs Electric power washers?

The main difference is that a gas pressure washer, known for its cleaning power, is powered by a gasoline engine, making it more powerful and portable, while an electric pressure washer is powered by electricity and is generally quieter and lighter.

Gas pressure washers are for heavy duty and large areas due to their durability, whereas electric pressure washers are for smaller jobs.

Your BE electric pressure washer is perfect for smaller jobs and built for portability, and we offer a wide range of electric models. Included with our electric models is a long extension cord for use anywhere around your house.

What to consider?

When choosing a gas pressure washer consider:

  • Pressure (PSI): More PSI means more cleaning power but also more potential for damaging delicate surfaces.
  • Flow Rate (GPM): More GPM means faster cleaning as more water is dispensed.
  • Engine Power: Bigger engines mean more durability and power.
  • Portability: Weight, handle design and wheel size for easier to move.
  • Nozzles: Multiple spray nozzles to adjust the spray pattern for different tasks.
  • Adjustable Nozzle: Allows for fine-tuning the spray intensity and pattern for various cleaning needs.

How much pressure do I need for?

The required pressure (PSI) and cleaning power depend on the surface you’re cleaning:

  • Light duty (car washing, outdoor furniture): 1,300-1,800 PSI.
  • Medium duty (patios, fences, decks): 2,000-3,000 PSI.
  • Heavy duty (driveways, brick walls, large equipment): 3,000+ PSI.

Many pressure washers come with adjustable pressure settings to handle different cleaning tasks effectively.

Can a pressure washing damage surfaces?

Yes, a power washer can damage surfaces if used incorrectly. High pressure water can strip paint, dent soft surfaces or even cause structural damage if the pressure is too high or the nozzle is held too close to the surface. Always use the right PSI for the material you’re cleaning and keep a safe distance from delicate surfaces.

To prevent damage, consider using a model with adjustable pressure settings.

How to maintain your pressure washer?

To ensure the durability and smooth operation of a pressure washer:

  • Change the oil as per manufacturer’s instructions.
  • Clean or replace the air filter to ensure good airflow.
  • Inspect and clean the nozzle regularly to prevent clogs.
  • Drain the gas tank if you’re storing the washer for a long time.
  • Check the hoses for leaks or damage and replace them if needed.
  • Follow regular maintenance requirements to keep the washer in optimal condition.

Can I use a pressure washer in cold weather and low water temperature?

You can use a pressure washer in cold weather but it’s more difficult. The water flow rate in the hoses and pump can freeze and damage the equipment. If you plan to use your pressure washer in cold temperatures make sure to winterize it and store it in a warm area when not in use. You can also use anti-freeze solutions for pressure washers.

Some models are designed to use hot water, which can be particularly effective for cleaning in cold weather.

Do I need any accessories?

Common accessories for power washers: