The Best Undercounter Dishwasher
Our research spans residential and commercial undercounter dishwashers. We analyze capacity, sanitation, build quality, and user feedback to identify top performers for any space.
By Salvador Wright
Updated September 10, 2026
If you’re short on floor space but need serious cleaning power, an undercounter dishwasher is the solution. These space-saving workhorses fit flush with cabinetry, making them ideal for small kitchens, rental properties, bars, and commercial kitchens.
With options ranging from compact residential units to high-throughput commercial models, finding the right one can be a challenge.
At BestProducts, we evaluate each model using our rigorous BP Score system, analyzing specifications, expert review consensus, verified buyer feedback, and published data.
Our goal is to cut through marketing hype and help you choose the best undercounter dishwasher for your specific needs. Below, find our curated selection of top-rated undercounter dishwashers.
| Award | Product | BP Score About BP ScoreThe BP Score is our own rating from 0 to 10, based on performance, design and build, ease of use, and value. It reflects independent research and is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | Price | |
|---|---|---|---|---|
| Best Overall |
Lamber DSP4DPS Undercounter Dishwasher 30 Racks/hr
|
9.9/10 | $3,639.00 | Buy |
| Best Premium |
RIOXC 60 Rack/Hour Commercial Dishwasher
|
9.9/10 | $3,999.99 | Buy |
HYBOKITCH 40 Racks/Hr Undercounter Dishwasher
|
9.8/10 | $2,899.99 | Buy | |
| Best Budget |
Elite Kitchen Supply 30 Racks/Hour Glasswasher
|
9.8/10 | $2,330.00 | Buy |
| Best Value |
Cooler Depot H50-S1 Undercounter Dishwasher
|
9.8/10 | $2,572.00 | Buy |
VIKEER Commercial Undercounter Dishwasher 24
|
9.8/10 | $3,299.99 | Buy | |
Elite Kitchen Supply 30 Rack/Hour Commercial
|
9.6/10 | $2,333.00 | Buy | |
Honeywell 24-Inch Built-In Dishwasher
|
9.5/10 | $399.99 | Buy | |
COMFEE' 18-Inch Built-in Dishwasher
|
9.5/10 | $448.99 | Buy | |
RIOXC Commercial Dishwasher 40 Racks/Hr
|
9.5/10 | $2,999.99 | Buy | |
Midea 18 Inch Built-In Dishwasher
|
9.4/10 | $498.97 | Buy |
Lamber DSP4DPS Undercounter Dishwasher 30 Racks/hr
This commercial-grade undercounter dishwasher from Lamber features a stainless steel construction and a quick 2-minute wash cycle, ideal for high-volume glassware. Its spacious 20x20 inch basket, temperature control thermometers, and removable control panel make it a solid choice for busy bars and restaurants.
Pros
- Spacious 20x20 inch basket for glassware
- Stainless steel wash and rinse arms
- 2-minute wash cycle speeds up workflow
- Temperature thermometers for consistent results
- Removable control panel for easy maintenance
Cons
- Heavy at 106 pounds
- Requires 208-240V power supply
- Undercounter installation may need professional help
RIOXC 60 Rack/Hour Commercial Dishwasher
This door-type commercial dishwasher is designed for busy kitchens, washing up to 60 racks per hour and sanitizing with a 194°F final rinse. Three cycle lengths handle light to heavy loads, and CSA/ETL certifications plus a 3-year warranty add confidence. It suits restaurants, hotels, cafeterias, bars, and catering operations.
Pros
- 60 racks per hour capacity
- 194°F sanitizing high-temperature rinse
- CSA and ETL certified
- Three selectable wash cycles
- 3-year warranty included
Cons
- Heavy 287-pound unit needs strong floor support
- Large footprint requires ample kitchen space
- Hood opens to 76 inches, may need headroom
HYBOKITCH 40 Racks/Hr Undercounter Dishwasher
This high-temp undercounter dishwasher from HYBOKITCH packs commercial-grade performance into a compact footprint. With a 40-rack-per-hour capacity and built-in booster heater reaching 180°F rinse temperatures, it’s a solid choice for busy restaurants, bars, and cafes that need reliable sanitization without taking up too much space.
Pros
- 40 racks per hour for peak demand
- 180°F high-temp sanitizing rinse
- Built-in detergent, rinse aid and drain pumps
- 304 stainless steel construction resists rust
- Uses only 0.67 gallons per rack
Cons
- Requires 208-240V 6-20P connection
- Heavy at 149 pounds
Elite Kitchen Supply 30 Racks/Hour Glasswasher
Designed for high-volume bar and restaurant use, this undercounter unit washes up to 30 racks per hour. Its electronic controls offer three selectable cycles and digital temperature monitoring, while the double-skin body conserves energy. Professional installation is required, and the warranty has specific exclusions.
Pros
- Washes up to 30 racks per hour
- Energy-efficient double-skin design
- Rotating stainless steel wash arms
- Includes chemical dispensers and hoses
- Digital temperature gauges for monitoring
Cons
- Requires professional installation (costly)
- Warranty excludes food trucks, residential, etc.
- Heavy at 158 pounds
Cooler Depot H50-S1 Undercounter Dishwasher
This NSF-certified commercial undercounter dishwasher handles up to 30 racks per hour with three selectable cycles (120, 150, 180 seconds). Its double-skin insulation and low rinse volume (0.66 gallons per cycle) make it a reasonably efficient choice for high-volume kitchens.
Pros
- NSF certified for high-temperature sanitization
- Low water usage at 0.66 gallons per rinse
- Double-skin body reduces energy loss
- Includes chemical dispensers for easy setup
- Rotating stainless steel arms with wide-angle nozzles
Cons
- Chamber height limited to 12 inches
- Requires 208-240V power supply (single or three phase)
- Heavy unit at 160 pounds
VIKEER Commercial Undercounter Dishwasher 24
This heavy-duty undercounter glasswasher uses high-temperature cleaning (131-140°F wash, 180-194°F rinse) to tackle stubborn residue on glassware. With rotating spray arms and a 24-rack-per-hour throughput, it's built for continuous use in bars, coffee shops, and restaurants. The 304 stainless steel chamber and included pair of 20x20 inch baskets add durability and capacity.
Pros
- High-temp cleaning dissolves stubborn oil and residue
- Durable 304 stainless steel construction
- Fast 24 racks per hour throughput
- Easy plug-and-play 240V installation
- Includes two 20x20 inch baskets
Cons
- Requires a dedicated 240V outlet
- Heavy at 145 pounds, difficult to move
- Primarily designed for glassware, not general dishwashing
Elite Kitchen Supply 30 Rack/Hour Commercial
This undercounter dishwasher from Elite Kitchen Supply is built for high-volume commercial kitchens, processing up to 30 racks per hour with 120-180 second cycles. It uses just 0.66 gallons per cycle and features digital temperature controls for wash (140°F) and rinse (180°F), but requires professional electrician installation due to its 208-240V 3-phase power (convertible to 1-phase).
Pros
- High throughput of 30 racks per hour
- Very water efficient at 0.66 gallons per cycle
- Digital temperature displays for precise control
- Double-skin body and doors for insulation and durability
Cons
- Requires electrician installation which may be costly
- Warranty does not cover food trucks, trailers, or residential use
- Heavy at 158 pounds
Honeywell 24-Inch Built-In Dishwasher
This 24-inch built-in dishwasher from Honeywell offers 12 place settings, seven wash cycles, and three modes in a stainless steel base tub with plastic sides. Its Energy Star certification and ADA-compliant dimensions make it a practical fit for energy-conscious and accessibility-focused kitchens.
Pros
- 12 place settings with removable cutlery basket
- Seven wash cycles and three modes
- Energy Star certified
- Up to 24-hour delay start
- ADA-compliant dimensions
Cons
- Tub sides are plastic, not stainless steel
- Heavy 70-pound unit
COMFEE' 18-Inch Built-in Dishwasher
This compact 18-inch built-in dishwasher from COMFEE' is designed for small kitchens, offering a slim footprint without sacrificing capacity. It holds up to 8 place settings, features six wash cycles including a hi-temp sanitize option, and uses heated drying for cabinet-ready results.
Pros
- Slim 18-inch design fits tight spaces
- Adjustable upper rack accommodates tall pots
- Heated dry function for thorough drying
- Hi-temp wash reaches 136°F for heavy soil
- Energy Star and NSF certified
Cons
- Only 8 place settings limit capacity
- Heated dry not available on Rapid or Self-Clean cycles
RIOXC Commercial Dishwasher 40 Racks/Hr
This high-temp undercounter dishwasher from RIOXC is built for busy kitchens, cleaning up to 40 racks per hour. It is CSA and ETL certified, ensuring compliance with North American safety and sanitation standards, and features a compact 24-inch design suitable for tight spaces.
Pros
- Fast 40 racks per hour throughput
- Meets strict safety and health code standards
- High-temp rinse fully sanitizes dishes
- Space-saving undercounter design
- Easy-to-use digital controls with cycle options
- Three-year warranty for long-term reliability
Cons
- Heavy at 158 pounds may require two-person installation
- Requires 208-240V electrical connection (not standard outlet)
- No built-in water softener or filtration system
Midea 18 Inch Built-In Dishwasher
This slimline Midea dishwasher fits tight spaces while holding up to 8 place settings and accommodating tall pots. It offers six programs and three functions including a heated dry and high-temperature sanitize cycle for heavy-duty cleaning.
Pros
- Compact size fits narrow spaces
- Large capacity for 8 place settings
- Multiple wash programs and functions
- Heated dry eliminates towel drying
- Sanitize cycle for baby bottles
Cons
- Requires specific dishwasher detergent
- Rapid cycle lacks heated drying
Best Undercounter Dishwasher Buying Guide
Capacity & Dimensions
Capacity varies widely: residential undercounter dishwashers typically hold 8 to 12 place settings, while commercial models rate throughput in racks per hour (e.g., 30, 60 racks/hr). Before buying, measure your available space and consider your typical load size.
For a busy café, a 60-rack model might be essential; for a family kitchen, 8, 12 place settings often suffice. Our dishwasher guide compares capacities for different kitchen sizes.
Commercial units are often wider (24 inches) and taller; some require a 208, 240V circuit. Residential models like the 18-inch Midea are narrower and plug into standard outlets. Pay close attention to the dimensions for a seamless undercounter fit.
Temperature & Sanitation
High-temperature dishwashers (often 180°F final rinse) provide superior sanitation and faster drying, making them the standard in commercial kitchens. Many are NSF-certified, ensuring they meet health codes. Low-temp models use chemical sanitizers and may be gentler on glassware but require careful chemical management.
For home use, high-temp models offer peace of mind, especially for families with young children. Check energy usage, some high-temp units use more power but save time. Browse our appliances category for more kitchen efficiency tips.
Installation Requirements
Installation complexity ranges from plug-and-play to professional electrician required. Most commercial undercounter dishwashers require 208, 240V, 1- or 3-phase power, and flexible water connections. Many sold without a plug; you must hardwire or order an optional cord.
Residential units usually come with a standard NEMA 5-15 plug.
Always confirm voltage and phase requirements before purchase. If you’re not comfortable with electrical work, hire a licensed electrician. Also consider drainage, some commercial models need a dedicated floor drain. For similar installation considerations, read about air fryer setups in our kitchen appliance reviews.
Build Quality & Materials
Stainless steel interiors resist corrosion, hold heat better, and dry faster than plastic tubs. Commercial models often use heavy-gauge 304 stainless steel for longevity under constant use. Look for stainless steel frames, spray arms, and filters, especially if the dishwasher will run multiple cycles daily.
Residential units with stainless steel tubs (like the Honeywell 24-inch) are more durable than plastic-tub models. Check if the door seal is durable and easy to replace. A well-built undercounter dishwasher can last over a decade with proper maintenance.
Noise Level & Efficiency
For home kitchens, noise matters. Residential undercounter dishwashers often operate at 48, 54 dBA. Commercial units are louder (typically 60+ dBA) but are often placed away from dining areas. Energy Star certification indicates efficient water and electricity use, look for models that save resources without sacrificing performance.
If you’re outfitting a commercial space, noise is less critical, but efficiency still impacts your utility bills. Compare energy consumption across models in our dehumidifier and general appliance coverage. For home use, prioritize quiet operation and water-saving cycles.
Special Features & Wash Cycles
Many undercounter dishwashers offer multiple wash cycles: heavy, normal, light, rinse-only, and glass mode. Commercial units may have a quick cycle (2, 3 minutes) for fast turnaround. Some models double as glasswashers, ideal for bars and restaurants that need spotless glassware.
Look for adjustable racks, stainless steel filters, and self-cleaning features. Residential units may include energy-saving delay start. High-end models (like the RIOXC 60-rack) include intensive wash for stuck-on food.
For more about kitchen gadgets, see our cast iron cookware guide for complementing your cookware care routine.
Why You Should Trust Us
BestProducts is an independent review site that does not accept free products or paid placements.
We evaluate each product using our proprietary BP Score (0, 10), based on a consistent methodology: we analyze manufacturer specifications, synthesize expert review consensus, aggregate verified buyer feedback from multiple retail sources, and reference published data with proper attribution.
We do not conduct our own product trials; our evaluations are grounded in research, published data, expert review consensus, and verified buyer feedback. Every recommendation is made without bias, and our affiliate relationships never influence our rankings.
Final Thoughts
- Best Overall: Eurodib DSP4DPS Lamber Deluxe High-Temp Undercounter Dishwasher, With a stellar BP Score reflecting its 30 racks/hour throughput, durable stainless steel construction, and high-temp sanitation, this model tops our list for commercial environments demanding reliability.
- Best for Small Spaces: Midea 18-Inch Built-in Dishwasher, This compact unit fits tight kitchens, offers 8 place settings, and earns a high BP Score for its efficient cleaning and stainless steel tub at an accessible price.
- Best Budget Pick: Honeywell 24-Inch Dishwasher, Combining 12 place settings, 7 cycles, and Energy Star certification, this undercounter dishwasher delivers solid performance and a strong BP Score for budget-conscious homeowners.
Frequently Asked Questions
What is the difference between high-temp and low-temp undercounter dishwashers?
High-temp (high-temperature) models use a final rinse at 180°F or higher to sanitize, eliminating bacteria without chemicals. Low-temp models rely on chemical sanitizers (e.g., chlorine) and operate at lower temperatures.
High-temp units are preferred in commercial kitchens for health code compliance and faster drying; low-temp models are gentler on glassware and more energy-efficient but require proper chemical handling.
Can I install an undercounter dishwasher myself?
Residential models with standard 120V plugs are relatively DIY-friendly if you have basic plumbing and electrical skills. Commercial units (208, 240V, 1- or 3-phase) typically require a licensed electrician for installation. Always check local codes and warranty requirements, amateur installation may void coverage.
How many place settings do I need?
For a household of 1, 2 people, 8 place settings is often enough. Families of 4 may prefer 12, 16. In commercial settings, capacity is measured in racks per hour (e.g., 30, 60 racks/hr). Choose based on your peak dish load and frequency of runs.
Are commercial undercounter dishwashers suitable for home use?
They can be, but consider the drawbacks: higher noise levels (60+ dBA), larger footprint, and 208, 240V power requirement. They also cost more upfront.
If you run heavy-duty cycles several times a day and prioritize speed and sanitation, a commercial model might be worth it, but most homes are better served by a residential unit.
What does NSF certification mean?
NSF/ANSI 2 or NSF/ANSI 3 certification indicates the dishwasher meets public health standards for sanitization and construction. It’s required for commercial foodservice but can also reassure homeowners that the machine kills 99.999% of bacteria when operated correctly.
NSF-certified models often use high-temperature rinse or chemical sanitization at proper concentrations.
How often should I clean my undercounter dishwasher?
Exterior: wipe after each use. Interior: run a cleaning cycle with a dishwasher cleaner monthly to remove grease and scale. Check and clean the filter weekly if you have hard water or heavy use.
Commercial models may require daily filter removal. Regular maintenance extends the life and performance of your investment.
About the author
Salvador reviews clothes dryers and dishwashers for BestProducts, comparing cycle performance, noise levels, and running costs over years of use. He steers readers toward quiet, efficient machines that earn their place in a busy household.