RMW25G28DF7EZ-TRV 2.5 GPM 2800 PSI | 7/8 Shaft Vertical Pump

Overview

The Annovi Reverberi RMW25G28 Vertical Pump is a high-performance axial cam pump designed to provide
reliable cleaning power for residential and light commercial pressure washers. Delivering
2.5 gallons per minute (GPM) at 2,800 PSI, this pump offers more pressure than standard
residential models, making it ideal for homeowners and professionals who need stronger performance for
demanding cleaning tasks.

Built for direct-drive operation, the RMW25G28 is engineered for gas engines with a
7/8″ hollow vertical shaft. Running at 3,400 RPM, it balances durability and
efficiency for a wide range of outdoor cleaning needs. With its integrated unloader valve, chemical soap injector,
and maintenance-free crankcase pre-filled with synthetic oil, this pump provides long-lasting, low-maintenance
reliability.

Key Specifications for RMW25G28DF7EZ-TRV

Performance & Design

• Flow Rate: 2.5 GPM
• Maximum Pressure: 2,800 PSI
• Operating Speed: 3,400 RPM
• Pump Type: Axial cam, vertical-drive direct mount
• Shaft Size: 7/8″ hollow vertical shaft for gas engines
• Integrated Unloader: Manual pressure adjustment knob for user control
• Chemical Injector: Built-in soap system for detergent-assisted cleaning
• Crankcase: Maintenance-free, pre-filled with synthetic oil
• Durability Features: Ceramic plungers, stainless steel valves, and reinforced seals

What’s Included

Included Components

• Pre-filled crankcase with synthetic oil for maintenance-free operation
• Integrated unloader valve with manual pressure adjustment
• Built-in chemical injector for detergent use
• Operator’s manual and schematic for setup and servicing reference
• Note: Mounting bolts are not included.

How the Pump Works

The RMW25G28 uses an axial cam direct-drive system that converts engine power into consistent, high-pressure
water flow. The integrated unloader regulates and relieves excess pressure, protecting the pump when the spray
trigger is released.

The manual adjustment knob provides control over spray intensity, allowing you to fine-tune output for delicate
surfaces or stubborn dirt. The built-in chemical injection system makes it easy to apply soap or detergents for
more effective cleaning of oily or grimy surfaces.

The maintenance-free crankcase, factory-filled with synthetic oil, eliminates the need for lubrication service.
Combined with ceramic plungers that reduce heat and friction, stainless steel valves for consistent sealing, and
heavy-duty seals, this pump is engineered for smooth, long-lasting performance.

Benefits

Key Advantages

• Higher Pressure Performance: 2,800 PSI rating provides extra power compared to standard residential models.
• Reliable Water Flow: 2.5 GPM ensures steady cleaning performance for small and medium jobs.
• Easy Installation: 7/8″ vertical shaft mounts directly to compatible gas engines.
• Integrated Features: Unloader, detergent injector, and adjustment knob simplify operation.
• Durable Construction: Ceramic plungers, stainless steel valves, and heavy-duty seals extend service life.
• Low Maintenance: Pre-filled synthetic oil crankcase eliminates routine oil changes.
• Ready to Use: Fully assembled and factory-tested for quick installation.

Typical Applications

Residential & Light Commercial Uses

• Driveway & Patio Cleaning: Remove stains, mildew, and debris from stone and concrete.
• Home Exterior Maintenance: Ideal for siding, fencing, decks, and outdoor structures.
• Vehicle Washing: Cars, trucks, motorcycles, ATVs, and small fleet vehicles.
• Equipment Cleaning: Lawn mowers, garden tools, and small machinery.
• Light Commercial Jobs: Storefronts, small shops, and rental property upkeep.

Why Choose the Annovi Reverberi RMW25G28

Reliability & Ease of Use

• Delivers more cleaning force than many standard residential pumps while remaining user-friendly.
• Integrated unloader system and detergent injector make it easy to adapt to different cleaning tasks.
• Maintenance-free design reduces upkeep time and cost.
• Built with premium materials and backed by Annovi Reverberi’s trusted engineering for long service life.

Conclusion

The Annovi Reverberi RMW25G28 Vertical Pump delivers 2.5 GPM at 2,800 PSI with
3,400 RPM operation and a 7/8″ hollow vertical shaft for gas engine
compatibility. Featuring an integrated unloader, built-in chemical injector, ceramic plungers, stainless steel
valves, and a maintenance-free oil crankcase, it is ideal for residential and light commercial pressure washer
applications. Upgrade your system with the RMW25G28—a pump built for higher pressure performance, easy installation,
and long-term durability.