Whisper Wash Mini Mondo Force 31″ Surface Cleaner (m400-hfal)

Whisper Wash Mini Mondo Force 31” – Dual Swivels, 4 Casters, Reversible Handle, and Maximum Surface Coverage

Engineered for power, flexibility, and reach, the Whisper Wash Mini Mondo Force 31” is a dual-swivel, dual-spray bar surface cleaner built to maximize efficiency on big jobs. By combining two high-performance swivels and dual spray bars, this cleaner delivers the same output as two machines—with only one operator.

The aircraft-grade aluminum cover, powder-coated for extra protection, spans 31″ x 16″ and is surrounded by a 1” heavy-duty nylon brush. This helps contain overspray and maintain optimal floating control. With four 3″ pivoting casters, the Mini Mondo glides smoothly in any direction—even through tight areas.

Underneath, two balanced and machined spray bars spin with precision, powered by dual Whisper Wash swivels with self-lubricating twin thrust bearings. Together, they provide a 33% performance boost over single-swivel models.

Meanwhile, the double-direction handle bracket offers a unique advantage. With a simple switch, you can operate the unit longways—perfect for narrow walkways, hallways, or tight work zones. This versatile design increases operator control while reducing fatigue, making extended jobs far more manageable.

Built for use with hot or cold water up to 212°F, the Mini Mondo handles pressures from 2,000–4,000 PSI and supports flow rates from 6–12 GPM—with optional mods up to 20 GPM. It’s ideal for contractors tackling high-output commercial work.

Before shipping, you must specify nozzle sizes or list your pressure washer’s GPM and PSI in your order notes.

A Legacy of Innovation: Whisper Wash Spray Bar Evolution

Whisper Wash started with basic, hard-to-balance spray bars built from elbows and tees. That outdated design is still used on third-rate units today.

They then released their signature one-piece spray bar, precision-machined for optimal balance. Later, they added stainless steel sleeves for added durability.

Now, Whisper Wash introduces a new generation of technology with Hydro-Flow and XForce spray bars, built to increase flow, boost longevity, and enhance cleaning symmetry.

Spray Bar Options:

Hydro-Flow Aluminum 2-Tip

• Lighter than traditional bars

• Compact, shorter design maintains full cleaning width

• Ideal for operators needing efficiency and low drag

Hydro-Flow Stainless Steel 2-Tip (Infinity Series)

• Stainless steel arms with aluminum hub for strength and balance

• 50% lighter and 6x more wear-resistant than older systems

• Lock-in indicators ensure perfect alignment

• 110% increased flow from ½” center hub and ⅜” spray arms

XForce Aluminum 4-Tip

• Four-tip layout offers wider coverage and faster passes

• Lightweight, aerodynamic arms allow smoother spinning

XForce Stainless Steel Performance 4-Tip

• Designed for extreme durability and optimal balance

• Built for contractors needing nonstop performance

• Reduced drag keeps RPMs consistent during extended use

Key Features:

• 31″ x 16″ powder-coated aluminum body for strength and lightweight handling

• Dual spray bars and dual swivels increase output and eliminate striping

• Four 3” pivoting casters provide superior directional movement

• Ergonomic reversible handle bracket adapts for tight work areas

• Balanced spray bars powered by self-lubricating twin-thrust bearing swivels

• Compatible with hot or cold water up to 212°F

• Pressure rating: 2,000–4,000 PSI | Flow rate: 6–12 GPM (mod up to 20 GPM)

• Max RPM: 2,500 | Weight: 33 lbs.

• Trigger gun control with quick-connect fittings

• 1-year manufacturer defect warranty included