If you have ever looked into upgrading to a smart toilet, you know how easily key technical details get buried under marketing buzzwords. While heated seats and ambient lighting are great, real satisfaction comes down to the basics: Does it flush reliably on low water pressure? Will it work during a power outage? And does it meet local plumbing codes?
The Peak K11-UPC-2208 was built with these exact contractor and homeowner priorities in mind

1. No Water Pressure Limits & Power-Off Flushing
One of the most common issues with tankless smart toilets is weak flushing performance in high-rise apartments or homes with low municipal water pressure. The K11-UPC-2208 overcomes this with a zero-pressure design paired with a Gravity Flush system
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Zero Water Pressure Restriction: Operates smoothly regardless of pipe pressure or floor height
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Power-Off Operation: Equipped with a mechanical manual flush button and gravity assistance, so the toilet remains fully functional even during unexpected power outages
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2. Tankless Instant Heating & Hygienic Water Flow
Traditional storage-tank toilets continuously reheat standing water, which consumes extra electricity and raises hygiene concerns. The K11-UPC-2208 uses Instant Water Heating, heating clean water on demand as it passes through the system
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Consistent Warmth: Delivers immediate, temperature-controlled water without running cold mid-wash
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Self-Cleaning Nozzle: The stainless spray wand automatically rinses itself before and after every use
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Versatile Wash Modes: Includes dedicated Rear Wash, gentle Feminine Wash, Child Mode (preset for milder pressure), and Hot/Cold Pulsating Massage options
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3. Thoughtful Family Features & Personalization
A good smart toilet should adapt to different family members without forcing everyone to reprogram settings every time
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User Memory Function: Saves customized spray, water pressure, and temperature settings for quick one-touch access
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Lid Options: Available with either Manual Flip or Automatic Sensor Flip depending on your budget and preference
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Night Ambient Light & LED Display: soft LED illumination guides nighttime visits without harsh overhead lights, while a clear display panel shows real-time status
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Wireless Remote Control: Wall-mountable layout for intuitive daily operation
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4. Plumbing Flexibility & cUPC Certification
Installing imported sanitaryware can sometimes run into compliance issues with local plumbing regulations. The K11-UPC-2208 carries official cUPC certification, verifying its safety, backflow protection, and structural integrity for North American and international building codes
Key Installation Specs:
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Dimensions: 680×420×520
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Floor Rough-in (S-Trap): Fits standard 300mm (12") or 400mm(16") centerlines
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Wall Rough-in (P-Trap): Compatible with 180mm wall outlets
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Electrical: Available in standard 110V and 220V configurations
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Technical Summary
| Feature | Specification Details |
| Model |
K11-UPC-2208 |
| Certifications |
cUPC Certified |
| Heating Mechanism |
Instantaneous Tankless Water Heater |
| Water Pressure Req. |
Tankless / No Pressure Limit (Built-in Gravity System) |
| Flush Backup |
Gravity Flush / Mechanical Power-off Flush |
| Rough-in Options |
S-Trap: 300mm/ 400m | P-Trap: 180mm |
| Voltage |
110V / 220V |
| Safety Features |
Electrical Leakage Protection, Temperature Sensor Cutoff |
Ready to Upgrade Your Project or Showroom?
Whether you are specifying fixtures for a residential remodel or sourcing for a commercial project, the peak K11-UPC-2208 balances high-end functionality with dependable engineering
Contact our sales team today for full specification sheets, installation guides, or wholesale pricing.
