RMW25G28SX-PKG | 2.5 GPM 2800 PSI Vertical Left-Hand Pump

RMW25G28SX-PKG | 2.5 GPM 2800 PSI Vertical Left-Hand Pump

• The Annovi Reverberi RMW25G28SX-PKG boxed pump package is a
  complete, left-hand orientation solution for pressure washer systems that
  require reverse-shaft compatibility.
• Built in Italy by Annovi Reverberi and distributed in North America by ARNA,
  this kit delivers durability, performance, and convenience in
  one ready-to-use package.
• At its core is the RMW25G28SX axial radial pump, rated
  2.5 GPM at 2,800 PSI, ideal for medium-duty cleaning tasks
  where steady flow and strong pressure are required.
• Compact axial radial design makes it a preferred choice for both residential
  and contractor-level cleaning where consistent results are critical.

Key Specifications

• Flow Rate: 2.5 GPM
• Maximum Pressure: 2,800 PSI
• Pump Type: RMW25G28SX axial radial
• Shaft Size: 7/8″ left-hand hollow shaft
• Engine Range: Compatible with most 4–7 HP gasoline engines
• Orientation: Left-hand (reverse-shaft) configuration for
  specific frames and engines

Left-Hand Shaft Design

• “SX” designation indicates a left-hand shaft orientation for
  reverse-drive applications.
• Designed for pressure washer frames and engines that require reverse-shaft
  layouts, ensuring proper fit and alignment.
• 7/8″ hollow shaft provides secure, direct mounting to compatible engines.
• Reduced vibration and smoother operation in configurations where left-hand
  orientation is required.

What’s Included in the Box

• Comprehensive installation and operation manual for quick setup and
  troubleshooting.
• Regulator/unloader for safe, accurate pressure control and pump protection.
• Chemical suction hose for downstream detergent and cleaning solution
  application.
• Mounting bolts and hardware for secure engine attachment.
• All required fittings and couplers for reliable plumbing connections.
• Boxed configuration protects pump and accessories during shipping and keeps
  all parts organized until installation.

Durability & Construction

• Corrosion-resistant housings withstand water exposure and harsh detergents.
• Thermal relief protection safeguards the pump from
  overheating during extended bypass operation.
• Precision-machined internal components and oversized bearings reduce
  vibration and wear, extending service life.
• High-quality seals and valves are engineered to handle fluctuating
  temperatures and demanding cleaning environments.
• Designed for long-term reliability with low maintenance requirements.

Typical Applications

• Residential exteriors: Siding, decks, patios, fences, and
  driveways.
• Vehicle & fleet cleaning: Cars, trucks, and small
  commercial vehicles.
• Contractor rigs: Mobile wash rigs and property maintenance
  projects requiring left-hand pumps.
• Agricultural use: Equipment rinse-down, barn cleaning, and
  general farm washdowns.
• Facility & municipal maintenance: Service bays,
  sidewalks, and routine public area upkeep.

Support & Service

• Backed by Annovi Reverberi’s engineering expertise and AR North America’s
  extensive parts and service network.
• Replacement seals, valves, and accessories are widely available to keep the
  pump fully serviceable over time.
• Strong technical assistance and parts continuity help reduce downtime and
  protect your investment.

RMW25G28SX-PKG | 2.5 GPM 2800 PSI Vertical Left-Hand Pump

• The Annovi Reverberi RMW25G28SX-PKG boxed pump package is a
  2.5 GPM, 2,800 PSI axial radial pump kit with a
  7/8″ left-hand hollow shaft, thermal relief protection,
  and complete installation hardware. Designed for pressure washers that
  require reverse-shaft orientation, it delivers durable, medium-duty cleaning
  performance for residential, contractor, agricultural, and facility
  maintenance applications.