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NaceCare DH 420 K-8025051 Hydrowasher Complete Unit โ€“ 14
Nacecare 14
Nacecare 14
Nacecare 14
Nacecare 14
Nacecare 14

NaceCare DH 420 K-8025051 Hydrowasher Complete Unit โ€“ 14", 650 RPM, H-Box, 110V

Brand: Nacecare SKU: K-8025051 In Stock – Ready to Ship
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NaceCare DH 420 K-8025051 โ€“ 14-Inch Hydrowasher Complete Unit with H-Box for Unlimited 110V Runtime

The NaceCare DH 420 (part number K-8025051) is a 14-inch cylindrical Hydrowasher that includes the Hybrid Box (H-Box), which connects the machine to a standard 110V outlet for unlimited runtime. The H-Box also enables an optional steam cleaning mode for chemical-free sanitizing. With 800,000 bristles in counter-rotating brushes at 650 RPM, 57 lbs of brush pressure, and 64 dB(A) operation, the DH 420 cleans hard floors, carpets, and escalators with the same machine across virtually any commercial facility.

DH 420 K-8025051 H-Box System and Surface Versatility

  • Hybrid Box (H-Box) โ€” unlimited 110V runtime: connects the DH 420 to a standard 110V outlet, eliminating battery runtime limits and enabling continuous operation across full cleaning shifts without interruption.
  • Optional steam cleaning through H-Box: the H-Box adds a steam option that delivers chemical-free high-temperature sanitizing, extending the DH 420's capability beyond standard wet cleaning into steam sanitization applications.
  • 800,000 bristles / 650 RPM counter-rotating cylindrical brushes: high bristle density reaches grout lines, surface texture, rubber tiles, and carpet fibers that flat disc pads cannot agitate; counter-rotation creates converging lift action for effective soil removal.
  • All-surface capability โ€” hard floors, carpets, escalators: one machine with appropriate brush selection handles grouted tile, rubber, hardwood, carpet, and escalator tread cleaning.
  • 64 dB(A) noise level: quiet enough for use in occupied hospitals, schools, and hotels during normal hours.
  • Edge cleaning โ€” brushes reach baseboards: offset brush and drive unit cleans right to wall edges without a separate edge pass.

Where the DH 420 with H-Box Differs from the Battery DHB 420

The DH 420 (K-8025051) is the corded-with-H-Box version; the DHB 420 (K-8025052) is the battery-first version with H-Box as backup. For facilities with consistent outlet access, the DH 420 provides unlimited runtime without battery constraints. For facilities with restricted cord access โ€” large open floor areas, areas without nearby outlets โ€” the DHB 420's 50-minute battery runtime provides cord-free operation with the H-Box as a fallback when outlets are available. The steam option is identical between both models when used with the H-Box connected.

Related: Commercial Floor Scrubbers ยท Steam Cleaners ยท NaceCare Floor Scrubbers

DH 420 Trigger Control and Multi-Surface Brush Options

Solution dispensing is controlled by a trigger on the handle โ€” press to apply solution, release to stop. This allows targeted solution delivery on textured tile without over-wetting adjacent carpet areas. Brush options follow the same system as the DP 420: yellow for carpet, grey for general hard floors, black for aggressive scrubbing. The wet sweep capability means pre-sweeping is not required โ€” the DH 420 picks up coarse debris and fine dust simultaneously with the cylindrical brush and recovery system.

Part Number K-8025051
Cleaning Width 14 inches
Working Capacity 4,000 sq ft/hr
Brush Speed 650 RPM
Brush Pressure 57 lbs
Brush Motor 500W
Power Supply 110V (via H-Box, unlimited runtime)
Steam Option Yes (via H-Box)
Solution Tank 2 gallons
Recovery Tank 1 gallon
Noise Level 64 dB(A)
Weight 60 lbs

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Manufacturer's Warranty

This product comes with a full manufacturer's warranty. All warranty claims are handled directly by the manufacturer.

For specific warranty details, please contact us at (978) 295-7538 or email info@uscleaningtools.com

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Frequently Asked Questions

What does the H-Box do on the NaceCare DH 420 K-8025051?
The Hybrid Box (H-Box) connects the DH 420 to a standard 110V outlet, providing unlimited runtime without battery constraints. The H-Box also enables an optional steam cleaning mode that delivers chemical-free high-temperature sanitizing through the cylindrical brush system.
Can the DH 420 K-8025051 clean carpet as well as hard floors?
Yes. With yellow carpet brush heads, the DH 420 performs interim carpet maintenance cleaning. With grey or black hard floor brush heads, it scrubs tile, rubber, textured concrete, and hardwood. One machine handles both surface types by changing brush heads between tasks.
Does the DH 420 require pre-sweeping before use?
No. The DH 420 includes a wet sweep capability โ€” the cylindrical brush and recovery system pick up coarse debris and fine dust simultaneously with scrubbing, eliminating the pre-sweep step that disc scrubbers require before wet cleaning.
What is the difference between the DH 420 K-8025051 and the DHB 420 K-8025052?
The DH 420 (K-8025051) is the corded H-Box version optimized for unlimited runtime with consistent outlet access. The DHB 420 (K-8025052) is the battery-first version with a 48V battery for 50 minutes of cordless use, with H-Box as a fallback for when outlets are available. Both offer the same steam cleaning option through the H-Box.
What surfaces can the DH 420 K-8025051 clean?
The DH 420 cleans hard floors (tile, rubber, textured concrete, hardwood, ceramic), carpets, and escalator treads. Surface compatibility is determined by brush selection: black for aggressive hard floor scrubbing, grey for general-purpose hard floors, and yellow for carpet and sensitive fiber cleaning.
What brush speed does the DH 420 use?
The DH 420 operates its 800,000-bristle counter-rotating cylindrical brushes at 650 RPM with 57 lbs of brush pressure. The counter-rotating action means both brushes converge simultaneously to lift soil, more effective at soil removal from uneven surfaces than a single rotating brush or flat disc pad.

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Orders are processed within 1-2 business days and then prepared for shipment.

5. How long does it take for my order to arrive?

Estimated arrival time (ETA) is 5-7 business days for all orders.

6. Do you offer warranty?

All our products come with a manufacturer warranty of at least 1 year, depending on the brand.

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