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NaceCare DHB 420 K-8025052 Battery Hydrowasher – 14
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NaceCare DHB 420 K-8025052 Battery Hydrowasher – 14", 48V, 50 Min, 750 RPM, H-Box

Brand: NacecareSKU: K-8025052In Stock – Ready to Ship
$4,395.00$4,699.00Save $304.00
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NaceCare DHB 420 K-8025052 – 14-Inch Battery Hydrowasher, 48V, 50-Minute Cordless Runtime

The NaceCare DHB 420 (part number K-8025052) is the battery-first version of NaceCare's 14-inch cylindrical Hydrowasher platform — a 48V lithium battery providing 50 minutes of cordless runtime, with full recharge in 1 hour. The included Hybrid Box (H-Box) converts the machine to unlimited 110V operation and adds an optional steam cleaning mode. At 750 RPM, 800,000 bristles, 57 lb brush pressure, and 64 dB(A), the DHB 420 delivers the same cylindrical brush cleaning as the DH 420, with the added flexibility of cordless operation where outlets are unavailable or cords are impractical.

DHB 420 K-8025052 48V Battery System and H-Box Hybrid Operation

  • 48V lithium battery, 50-min cordless runtime: covers single-room or single-area cleaning runs without cord management; 50 minutes is appropriate for restroom cleaning, kitchen floor scrubbing, and focused escalator maintenance between charging cycles.
  • 1-hour full recharge time: short recharge window allows the machine to be returned to service quickly after a cleaning session; charged during a break and deployed again for a second session in a single shift.
  • H-Box 110V backup — unlimited runtime when outlet access is available: connects to a standard 110V outlet to extend operation indefinitely when cords are not a constraint, eliminating battery as a limiting factor on longer cleaning sessions.
  • Optional steam mode via H-Box: same steam sanitizing capability as the DH 420 Steam when connected via H-Box; chemical-free high-temperature surface sanitizing available when 110V is accessible.
  • 800,000 bristles / 750 RPM counter-rotating cylindrical brushes: higher brush speed than the DH 420 (650 RPM) in battery mode; the 750 RPM rate reflects the battery motor's optimized output at 48V.
  • 64 dB(A) quiet operation: consistent noise level whether running on battery or H-Box 110V power; appropriate for occupied environments during cleaning hours.

When to Choose the DHB 420 Battery vs. the DH 420 Corded H-Box Model

The DHB 420 is the right choice when cord-free operation is required for at least part of the cleaning routine — areas without nearby outlets, open floor spaces where cord management is hazardous, or areas where the machine needs to reach without trailing cord. The H-Box fallback means the DHB 420 can still run unlimited hours when outlets are accessible, making it the more versatile option for facilities with mixed cord-access conditions. The DH 420 (K-8025051) is the better choice for facilities with consistent outlet access where battery constraints are an unnecessary cost and complexity.

DHB 420 Multi-Surface Cleaning and Wet Sweep Capability

The DHB 420 cleans hard floors, carpets, and escalators with brush selection changes. Wet sweep capability picks up coarse debris and fine dust simultaneously with scrubbing — no pre-sweeping required. UltraBrush compatibility: yellow for carpet, grey for general hard floors, black for aggressive hard floor scrubbing. The trigger-controlled solution dispensing applies solution only when and where needed, conserving tank capacity on the 1-gallon solution tank.

Part Number K-8025052
Cleaning Width 14 inches
Working Capacity 4,000 sq ft/hr
Battery 48V lithium
Runtime (full charge) 50 minutes
Charge Time (full) 1 hour
Brush Speed 750 RPM
Brush Pressure 57 lbs
Brush Motor 500W
H-Box Power 110V (unlimited runtime fallback)
Steam Option Yes (via H-Box)
Solution Tank 1 gallon
Recovery Tank 1 gallon
Noise Level 64 dB(A)
Weight 69 lbs

Documents

Spec Sheet

Manual

Videos

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 +1 (978) 295-7538 or email info@uscleaningtools.com

B2B & Tax-Exempt Purchases

We supply contractors, restoration companies, property managers, schools, government agencies, and other tax-exempt organizations.

How to place a tax-exempt order:

  1. Write to us through our Contact Us page or email info@uscleaningtools.com and attach your valid tax exemption certificate (state resale or exemption certificate).
  2. We verify your certificate and mark your account tax-exempt — usually within one business day.
  3. Place your order and sales tax will not be charged.

For volume pricing or purchase orders, call +1 (978) 295-7538.

Shipping & Returns

Free shipping on most brands for orders over $300, delivered to the lower 48 states. Any brand-specific freight rate is shown at checkout before you pay.

Processing & delivery: in-stock orders are processed within 1–2 business days and typically deliver in 5–7 business days. Tracking is emailed within 24 hours of shipment. Built-to-order and backordered equipment shows its lead time on this page.

Freight deliveries: inspect your equipment on arrival and note any damage on the delivery receipt. Items damaged in transit or defective on arrival are fully covered at no cost to you.

Cancellations: cancel any time before your order ships. Refunds are issued for the order total minus the non-refundable payment processing fee (2.9% + $0.30), so a cancellation is not always a 100% refund. No fee is deducted if we cancel the order or the item arrives damaged or defective.

30-day returns: return unused equipment in its original packaging within 30 days of delivery. Change-of-mind returns are subject to a restocking fee. To start a return, email info@uscleaningtools.com or call +1 (978) 295-7538.

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Frequently Asked Questions

How long does the NaceCare DHB 420 battery run before recharging?
The DHB 420 runs 50 minutes on a full 48V battery charge. Full recharge takes 1 hour. The short recharge time means the machine can be charged during a break and returned to service for a second session within a single shift.
What does the H-Box do on the DHB 420 K-8025052?
The H-Box connects the DHB 420 to a standard 110V outlet, providing unlimited runtime when cord access is available. The H-Box also adds an optional steam cleaning mode for chemical-free sanitizing. When battery runs out and an outlet is accessible, the H-Box allows continued operation without waiting for a recharge.
When should I choose the DHB 420 over the corded DH 420 K-8025051?
Choose the DHB 420 when cord-free operation is needed for part of the cleaning routine — areas without outlets, open spaces where cord management is a tripping hazard, or locations requiring full maneuverability without a trailing cord. The H-Box allows the DHB 420 to also run unlimited hours when outlet access is available, making it the more versatile option for facilities with mixed conditions.
Can the DHB 420 use steam for sanitizing?
Yes, but only when connected via the H-Box to a 110V outlet. Steam generation requires 110V power, so the cordless 48V battery mode does not support steam. When the H-Box is plugged in, steam sanitizing is available for chemical-free surface sanitizing.
What brush speed does the DHB 420 operate at?
The DHB 420 operates at 750 RPM, slightly higher than the corded DH 420 (650 RPM). Both use counter-rotating cylindrical brushes with 800,000 bristles and 57 lbs of pressure. The 750 RPM rate reflects the battery motor's optimized output at 48V.
What surfaces can the DHB 420 K-8025052 clean?
The DHB 420 cleans hard floors (tile, rubber, textured concrete, hardwood), carpet (with yellow brush heads), and escalator treads. The wet sweep capability means pre-sweeping is not required — the cylindrical brush system picks up coarse debris and fine dust simultaneously with scrubbing.

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