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AR RMW22G24-EZ Pump – 2.2 GPM, 2,400 PSI, 7/8" Shaft

AR RMW22G24-EZ Pump – 2.2 GPM, 2,400 PSI, 7/8" Shaft

Specifications

UNLOADER

Built-In

WARRANTY

1 Year

RPM

3,400

PUMP MODEL

AR RMW22G24

PUMP TYPE

Axial

Soap System

Fixed

Oil Type

30W Non Detergent

Oil Capacity

2.2 oz

Thermal Relief Value

85.300.022

Max Inlet Temperature

43°C / 110°F

Manifold Type

Aluminum

Discharge Size

M22

Inlet Size

3/4" GHF

Plunger Piston

Tempered Steel

Unloader Type

Built-In

Max GPM

2.2

Shaft Size

7/8"

Direct Drive

Gas

Weight

7.3 lbs

View full details

PRODUCT

DESCRIPTION

The Reliable Replacement Pump for Gas Pressure Washers

The AR RMW22G24-EZ Pump is a genuine Annovi Reverberi replacement part for gas pressure washers. Built to restore or maintain peak washer performance, this axial cam direct-drive pump pumps 2.2 gallons per minute at 2,400 PSI for residential and light-duty commercial cleaning.

Boxed and ready to install, this replacement pump fits most small engines with a 7/8" shaft so you can get your pressure washer up and running again.

Features

  • Pump Manufacturer: Annovi Reverberi (AR)

  • Pump Model: RMW22G24-EZ

  • Pump Style: Axial cam, direct-drive gas

  • Max PSI: 2,400

  • Max GPM: 2.2

  • Shaft Size: 7/8"

  • Unloader: Built-in

  • Plunger (Piston): Tempered steel

  • Inlet: 3/4" GHF (garden hose fitting)

  • Discharge: M22

  • Soap Injector: Fixed chemical injector

  • Manifold: Aluminum

  • RPM: 3,400

  • Max Inlet Temp: 43°C / 110°F

  • Thermal Relief Valve: 85.300.022 included

  • Oil: 2.2 oz 30W non-detergent pump oil

  • Weight: 7.3 lbs

  • Warranty: 1 Year

Built for Performance

The AR RMW22G24-EZ pump has an axial cam direct-drive system, the most common design for residential pressure washers. Its compact footprint and 7/8” hollow shaft fits many small gas engines and its lightweight aluminum manifold is strong without extra weight.Up to 2,400 PSI of water pressure and 2.2 GPM of flow, this pump has enough power to tackle a wide range of outdoor tasks from washing vehicles and siding to cleaning decks, fences and driveways.

The tempered steel plungers are built to last, withstanding wear over time and the direct-drive design ensures efficient power transfer from the engine to the pump.

Built-In Features

The RMW22G24-EZ has a built-in unloader valve so you don’t need an external unloader. This makes installation easier and provides consistent pressure regulation.

A fixed chemical injector is included in the pump so you can add detergent for better cleaning. The injector draws in cleaning solution when the pressure washer is set to low pressure so you can switch between soap and rinse easily.

The EZ version of this pump has shaft orientation to make alignment with engines easier, making it a popular choice for replacements.

Protection and Durability

The pump comes with a thermal relief valve (85.300.022) to prevent damage from overheating during extended bypass operation. The valve releases hot water and draws in cooler water to extend pump life and maintain performance.

The pump uses 30W non-detergent pump oil and holds 2.2 oz to keep moving parts lubricated. Follow AR’s maintenance guidelines to maximize service life and prevent premature wear.

The pump has a max water inlet temperature of 110°F (43°C) to protect seals and components from excessive heat.

Applications

The AR RMW22G24-EZ Pump is great for residential and light-duty commercial cleaning applications. Its size, weight and pressure output makes it versatile for:

  • Driveways and Sidewalks – Remove oil, dirt and grime buildup.

  • Decks, Patios and Fences – Restore wood, stone and composite surfaces.

  • Vehicles, RVs and Boats – Safe and effective exterior cleaning.

  • Outdoor Furniture – Wash away mildew, pollen and weather buildup.

  • General Property Maintenance – A replacement for everyday home cleaning needs.

Product

  • Manufacturer: Annovi Reverberi (AR)

  • Model: RMW22G24-EZ* Style: Axial cam, direct-drive

  • Max PSI: 2,400

  • Max GPM: 2.2

  • Shaft Size: 7/8”

  • RPM: 3,400

  • Unloader: Built-in

  • Chemical Injector: Fixed

  • Manifold: Aluminum

  • Plunger: Tempered steel

  • Inlet: 3/4” GHF

  • Discharge: M22

  • Oil: 2.2 oz (30W non-detergent)

  • Thermal Relief Valve: 85.300.022

  • Max Inlet Temp: 43°C / 110°F

  • Weight: 7.3 lbs

  • Warranty: 1 Year

AR Quality

Annovi Reverberi is a pump manufacturer with years of experience and the RMW22G24-EZ is a reflection of that. With a 1-year warranty this pump is a replacement for many common gas powered residential pressure washers and will restore lost performance with OEM parts.

When your pressure washer pump goes out don’t settle for less. The AR RMW22G24-EZ Pump is the trusted choice to get your equipment up and running again with reliable power, easy installation and durable performance.

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: