Product: Oiko_KT2220_C

BWT Little Black Diamond Series 2.7L Instant Water Filter KT2220-C

Merchant: OiKO Limited


  • Boil water for 5 seconds
  • Three in one function: filtering, adding minerals, heating
  • Intelligent controller to adjust temperature control and water volume

*Promotion period is from 1/9/2021-30/9/2021

Purchase Exceed $500 EnjoyFree Shipping

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14% off
2% Rebate
This offer is only avaliable for members with total valid eDollar amount HK$0.0.
This offer is only avaliable for members with total valid eDollar amount HK$0.0.
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Free shipping for all Oiko Limited orders of amount above $500. Delivery fee of HK$30 will be charged for order below $500. Click HERE to see more Oiko Limited's products.

product description

  • Patented temperature control instant heating system-it only takes 5 seconds to heat up to the specified temperature (patent number: ZL 201520806165.5)-it will not keep boiling water.
  • 4 levels of intelligent temperature control for instant drink-4 temperature options (25 degrees, 45 degrees, 85 degrees, 100 degrees)
  • 1 machine multi-purpose-1 existing filter, boiling water, constant temperature and heat preservation function
  • Safe child lock, to prevent children from accidentally pressing and scalding-it will be automatically locked if there is no operation within 5 seconds
  • Free installation and no water source limitation-small size, just plug in and use
  • Water shortage and dry-burn protection-when the water level is low (about 0.5L), the water machine will give a sound and flash to remind you to add water
  • 2.7L capacity meets 8 cups of water per day-the lid of the water tank can be opened or added directly
  • Multi-purpose design-can brew tea, cup noodles, make baby milk powder, warm milk, all families can drive
  • Movable drip tray, can be matched with different container heights



  • The side of the fuselage is made of stainless steel, which is not afraid of corrosion by moisture, steam, and water
  • The main material of the machine is PP, the same material as the baby bottle, safe and non-toxic
  • The water tank is made of AS material, with high transparency and safety, and it is resistant to falling. It is often used in pots, cups, baby bottles, etc.
  • Small body suitable for various environments in Hong Kong
  • It only takes 5 seconds to heat the water to 100 degrees
  • 4 levels of temperature, suitable for different beverages (25°C, 45°C, 85°C, 100°C)
  • 3 kinds of water volume design suitable for different purposes and containers (150mL, 230mL, 300mL)


Included in product package

  • BWT Black Diamond Series Instant Water Filter x 1
  • Manual x 1
  • BWT magnesium ion filter x 1


Product specifications

  • Filter element compatible: BWT 4 filter elements made in Austria (magnesium ion, zinc plus magnesium, descaling, alkaline water)
  • Product size: (approx.) 289 * 150 * 301 (mm)
  • Luxin replacement: smart metering system
  • Change core reminder: flashing light reminder
  • Configuration Luxin: Magnesium ion vitality filter element (1)
  • Water source selection: tap water / direct drinking water
  • Product material: body (ABS), water tank (AS), side of the body (stainless steel)
  • Voltage: 220V
  • Power: 2200W

General Terms:

  • Items sold are non-refundable.
  • The products are supplied by Oiko Limited.
  • All product photos are authorized and provided by Oiko Limited. 
  • If in case of any dispute, Oiko Limited and health.ESDlife reserve the right of final decision.


Delivery Terms:

  • Free local delivery service will be provided upon transaction amount of any OiKO Limited products of HK$500. For spending less than HKD$500, HKD$30 delivery fee will be charged.
  • Delivery service is only available in Hong Kong.
  • No delivery service in the following areas: Ta Kwu Ling, outlying islands(Lantau (including Discovery Bay), Lamma Island, Cheung Chau, Peng Chau, Tai O, Mui Wo, Ngong Ping), Ma Wan, Sha Tau Kok, Lok Ma Chau, Huanggang, Lau Fau Shan, Lung Kwu Tan, Tap Shek Kok, Airport.
  • We will arrange the shipment within 3 working days after the order is confirmed. 
  • Please note that the delivery time will be affected by statutory holidays, natural disasters, traffic or the weather.
  • All order confirmations are subject to stock availability. In the event of the unavailability of the requested products, Oiko Limited has the right to reject the order and notify customers by phone or email before delivery for rearrangements.



  • 1 year warranty with proof of purchase, 7 days guarantee return for manufacturer defective (Exclude any damage or loss caused by man-made or misuse)
  • Service Center:
    Flat 26-27, 6/F, Topsail Plaza, 11 On Sum Street, Shatin, N.T., Hong Kong
  • Opening hours:
    Mon-Fri: 0900 - 1700 (1300 - 1400 Lunch Time) / Sat, Sun & Public Holiday closed
  • CS hotline:
    (852) 27972210 / Whatsapp : 64133916
  • Email:


Exchange Policy:

  • Customers are responsible to check the condition of goods received at the time of delivery. Once confirmed, no replacement is accepted.
  • Products shall be kept in the original package with good conditions for return or exchange. Products that has been worn, used, or altered will not be accepted for return or exchange.
  • If any other defective or missing item is found, customers are required to keep the original receipt and contact Oiko Limited Customer Service Department via the below channels within 3 days from the date of delivery. 

【New Customer】$200 off on your 1st order above $2,000 Code: