Description
Coway Switch Undersink Tankless Water Purifier P-2211N At a Glance
The P-2211N is a non-electric undersink tankless water purifier for ambient water. Since install eligibility for tankless models depends on your water line, water pressure, and available space, we recommend checking your installation environment before ordering.
Key Features
Tucked Under the Sink for a Roomier Counter
At just 4.3 inches wide, the slim body fits the tight space under the sink. With nothing on the counter, your workspace stays clean and open.
Non-Powered Tankless — No Outlet Needed
Dispenses purified water using water pressure alone — no power cord, no outlet hunting, and zero added electricity use.
Simple, Intuitive Twist-Handle Dispensing
No complex electronic menus — just turn the handle for ambient purified water. A simple design with minimal electronics keeps everyday use intuitive.
Double Nano Trap + InnoSense Dual Filter
A 5-layer Double Nano Trap Filter paired with an InnoSense Filter, tackling fine particles, heavy metals, chlorine, VOCs, microplastics, and odor-causing substances step by step.
Specifications
| Model | P-2211N |
|---|---|
| Product Type | Undersink Tankless Water Purifier · Ambient Water |
| Dimensions | 4.3 × 8.7 × 10 inches (W × D × H) |
| Weight | approx. 5.07 lb |
| Color | Dark Gray |
| Power | Not required · Non-powered operation |
| Filter Configuration | Double Nano Trap Filter + InnoSense Filter |
| Dispensing Method | Manual-handle dispensing of ambient purified water |
| Installation Location | Under-sink space |
| Service Plan | Choose in-home service or self-care |
Dimensions follow the P-2211N undersink specs. Actual installation also needs working space for the water connection, filter replacement, and inspections — beyond the unit’s footprint.
Filters & Replacement Schedule
| Filter | Primary Role | Replacement Guideline | Official Pricing |
|---|---|---|---|
| Double Nano Trap Filter | Manages fine particles, heavy metals, and more through a multi-layer structure | 12 months per compatible dual set | $140 / set |
| InnoSense Filter | Manages chlorine, VOCs, microplastics, and odor-causing substances while improving taste |
Coway USA’s official filter shop sells the P-2201N/P-2211N compatible “Nano Trap + Plus Inno Sense (Dual)” set with a 12-month recommended replacement cycle for $140. Note: filter naming differs slightly between the product description and the retail replacement set.
Things to Check for Undersink Installation
| Space Utilization | Install the body under the sink to free up counter space |
|---|---|
| Slim Width | 4.3-inch width suits tight under-sink spaces |
| Power Connection | Not needed · no added electricity use for purified water |
| Water Connection | Tankless install connecting to the water line under the sink |
| Dispensing Operation | Turn the manual handle to dispense ambient purified water |
| Installation Check | We recommend confirming installation availability for your area, water pressure, plumbing, and under-sink layout beforehand |
Rental & Purchase Pricing
| Service Plan | Term | Regular Price |
|---|---|---|
| In-Home Maintenance | 6 Yrs | $27.99 / month |
| In-Home Maintenance | 5 Yrs | $31.99 / mo |
| In-Home Maintenance | 3 Yrs | $35.99 / mo |
| Self-Maintenance | 6 Yrs | $22.99 / mo |
| Self-Maintenance | 3 Yrs | $29.99 / month |
| One Pay | — | $999 |
Rental promotions may change by order period and contract terms. Check currently available offers.
View This Month's Promotions →Regular prices per the CowayCA product page; tax is separate. Actual pricing may vary by service area and promotions at the time of order.
Who It's Best For
Anyone who wants the clearest possible counter
With the body under the sink, nothing sits on the counter — keeping your workspace wide and tidy.
Anyone who wants simple ambient water with no power connection
A simple purification setup focused on ambient water — no cooling, no heating, no outlet, no electricity use.
Homes looking to use a narrow under-sink space
The approx. 4.3-inch slim body works around pipes in tight spaces, with your choice of in-home service or self-care.
Frequently Asked Questions
What kind of purifier is the P-2211N?
The P-2211N is an ambient-only undersink tankless water purifier with the main unit installed under the sink, keeping your counter space clear.
Does it need a power connection?
No. It runs on water pressure alone — no separate power connection needed for purified water.
What are the dimensions and weight?
It measures approx. 4.3 × 8.7 × 10 inches (W × D × H) and weighs approx. 5.07 lb.
What filters does it use?
Per CowayCA’s product description, it uses a Double Nano Trap Filter and InnoSense Filter. The official filter shop sells the P-2211N compatible replacement as the Nano Trap + Plus Inno Sense (Dual) set.
How often should I replace the filters?
Coway USA’s official filter shop lists the P-2201N/P-2211N compatible dual filter set at a 12-month recommended replacement cycle, currently $140.
Does it dispense cold or hot water?
The P-2211N focuses on ambient purified water — cold and hot functions are not included.
Can it be installed under any sink?
Tankless undersink models depend on the water line, water pressure, and under-sink space. CowayCA notes installation may be difficult in some areas, so please confirm before ordering.
How much are the rental and one-time purchase prices?
Regular pricing: in-home service at $27.99/mo for 6 years, $31.99/mo for 5 years, $35.99/mo for 3 years; self-care at $22.99/mo for 6 years, $29.99/mo for 3 years. One-time purchase is $999; actual pricing varies with tax and promotions.
Recent Installation Areas
These are areas where customers have had this product installed. Only cities are shown to protect customer privacy.
- Virginia Beach, VA
- Anaheim, CA
- VA
- CA
