Under the kitchen sink
Fits inside a standard sink cabinet and feeds the tap directly. The same body works under a bathroom basin — one model, two of the most common retrofit jobs.
A slim under-sink heater: 86 × 68 × 192 mm, mounted in a cabinet and fed straight to the kitchen tap or the basin. Rotary flow control keeps the outlet at 25–55 °C, the LCD shows it live, and at 3,500 W it runs on an ordinary 2 mm² circuit.
MOQ 100 pcs for custom panel colour, pattern and logo · 1,000 pcs for custom packaging. Samples from 1 pc — the sample price is higher than the bulk price, and we refund the difference once you place a bulk order within 30 days of receiving the sample. Prices are quoted per order, EXW Shanghai — tell us your quantity and destination port and we will reply within one working day.
Why this model
The lowest-cost way to put hot water at a kitchen sink without a tank or a second circuit.
Fits inside a standard sink cabinet and feeds the tap directly. The same body works under a bathroom basin — one model, two of the most common retrofit jobs.
No new cable run, no leakage-protector upgrade in most installations: 3.5 kW is enough for a sink, dishwasher or basin without a heavy electrical spend.
86 × 68 × 192 mm in a 240 × 80 × 135 mm box, 24 sets to a carton at 20 kg — the lightest freight in the range.
A single knob sets the flow and the LCD confirms the outlet reading. Nothing to programme, nothing to explain to the end user.
Specifications
Every unit is pressure-tested and function-tested before packing. Custom panel finish and power connection available for OEM orders.
| Model | RYK-008 |
|---|---|
| Product type | Instant electric water heater (point-of-use) |
| Rated power | 3,500 W |
| Rated voltage | 110 / 220 V ~ · 50 / 60 Hz |
| Rated frequency | 50 / 60 Hz |
| Heating element | Stainless steel tube, 3.5 kW |
| Heating time | ≈ 3 seconds |
| Temperature range | 25 – 55 °C |
| Control | Rotary control with LCD display |
| Protection | Water–electricity separation · multi-level protection |
| Waterproof rating | IPX4 |
| Power cable | ≥ 2 mm² copper core |
| Power connection | Plug standard to order (EU / US / UK / AU / Africa) |
| Certification | CE · RoHS |
| Unit size | 86 × 68 × 192 mm |
|---|---|
| Inner box | 240 × 80 × 135 mm |
| Pcs per carton | 24 pcs |
| Carton size | 495 × 495 × 420 mm |
| Gross weight | 20 kg |
| Body colour | White (custom on request) |
| Loading | LCL and FCL both available |
OEM & ODM
We build for importers, wholesalers and own-brand retailers — from a panel colour change to a fully customised product and gift box.
Body colour and front panel in your colour and pattern, with your logo printed or laser-etched. Artwork proof before mass production.
MOQ 100 pcsCustom printed inner box and master carton, colour or gift box, barcode and retail labelling. Export cartons are drop-tested.
MOQ 1,000 pcsPlug standard (EU / US / UK / AU / Africa) and cable length matched to your market. Shower set included or optional as listed above.
No extra MOQCE and RoHS test reports, product photos, specification sheets and packing lists for your own listings and customs clearance.
Ready to shareSamples & price protection
Every model is available as a sample, and every price step you reach is paid back to you — the sample itself included.
Order a single unit to test it, open it up and show your own customers. No minimum quantity, any model in the range, shipped with its CE and RoHS test reports.
MOQ 1 pcA single unit is charged above the bulk price, because of one-off handling and air freight. Place a bulk order for the same model within 30 days of receiving the sample and we refund the difference.
30-day rebateOur four price tiers — 10–99 / 100–999 / 1,000–9,999 / 10,000+ pcs — are counted cumulatively over the 30 days after you receive the goods. Reach a higher tier and we refund the difference on the units you have already shipped.
Cumulative over 30 daysTell us which model you want to test and we will send the sample invoice the same working day.
Send us your quantity, destination port and power connection requirements — we will come back with prices and lead time within one working day.
Browse the full range — instant water heaters, hot water taps and bathroom & desk heaters — in one PDF.