PRODUCT OVERVIEW
The Cleak K Series is a premium water purifier available in two configurations: the K Countertop Water Purifier (model CK3CN) and the K Undersink Water Purifier (model CK3UN). Both models are manufactured in South Korea, winner of the iF Design Award 2026, and are engineered with semiconductor cooling technology. They deliver hot, room-temperature, and cold water without requiring any drainage installation.
The K Countertop (CK3CN) sits directly on your kitchen counter at 148mm wide, while the K Undersink (CK3UN) has a discreet main unit hidden under the sink with a slim 73mm-wide faucet on the countertop. The CK3UN is available in four colours (Carbon Gray, Frost Gray, Blanc Gold, Bronze Brown), while the CK3CN comes in three (Carbon Gray, Frost Gray, Blanc Gold). Both share the same filtration system, temperature settings, and core features.
Yes. The Cleak K Series is designed for the Singapore market and is sold through cleak.com.sg. It operates on 220-240V, 50/60Hz power – compatible with Singapore’s standard electrical supply. It requires no drainage installation, making it practical for HDB flats, condominiums, and landed properties alike.
Yes. The Cleak K Series received the iF Design Award 2026, one of the most prestigious international design recognitions. The award reflects the K Series’ sculptural aesthetic, which combines a slim minimalist form with a fully functional water purification and dispensing system.
FILTRATION & WATER QUALITY
The Cleak K Series uses a two-filter system totalling up to 9 stages of filtration. The first filter is the Carbon Plus Filter, a 4-stage process covering sediment removal, pre-carbon treatment, heavy metal removal (lead, mercury, cadmium), and pH maintenance. The second filter is the Nano Plus Filter, a 5-stage process covering sediment, nano fibre, a positively charged membrane (for bacteria, viruses, and microplastics), post-carbon treatment, and an optional minerals stage. An optional Alkaline Plus Filter is also available.
Yes. The Nano Plus Filter includes a positively charged membrane that is specifically designed to capture bacteria, viruses, and microplastics – contaminants that standard carbon filters do not remove effectively. This makes Cleak one of the few countertop and undersink water purifiers in Singapore to address microplastics at the filter level.
Yes. The optional 9th stage of the Nano Plus Filter adds essential minerals back into the water after purification, ensuring the output is not only clean but balanced in taste and health properties. This optional minerals stage can be included based on the user’s preference.
The Carbon Plus Filter’s third stage is specifically designed for heavy metal removal, targeting lead, mercury, and cadmium – metals associated with aging pipes and tap water contamination in urban environments.
The Cleak Quad Hygiene System has four layers of hygiene protection: UV sterilization (auto and manual), a BPA-free faucet tip, stainless steel internal water pipes, and internal pipe sterilization (auto and manual). These measures work together to prevent secondary contamination of purified water from the moment it leaves the filter to when it reaches your cup.
TEMPERATURE & DISPENSING
The Cleak K Series offers 11 hot water temperature settings: 37 degrees C, 45 degrees C, 50 degrees C, 55 degrees C, 60 degrees C, 65 degrees C, 70 degrees C, 75 degrees C, 80 degrees C, 85 degrees C, and 98 degrees C. These cover a wide range of everyday uses – 37 degrees C for body-temperature warm water, 45 degrees C for baby formula, 70 degrees C for tea, and 98 degrees C for instant noodles. For cold water, there are two settings: Cold (3-5 degrees C) and Mild Cold (12-15 degrees C). Room temperature water at approximately 25 degrees C is also available.
Yes. The Cleak K Series features flexible volume control with precise dispensing options: 120ml, 150ml, 200ml, 250ml, 300ml, 350ml, 400ml, 450ml, 500ml, 1000ml, and a continuous mode. This makes it suitable for everything from a small cup of tea to filling a large pot.
Yes. The K Series is equipped with an instant heating module, which means hot water is available immediately at the selected temperature without a wait – unlike conventional water heaters or kettles that require a heating cycle.
Yes. The K Series includes a Triple Safety Lock system with three modes: Full Lock (locks all dispensing), Hot Water Lock (prevents accidental hot water dispensing), and Cold Water Lock. This is especially useful in households with young children.
TECHNOLOGY & ENGINEERING
No. The Cleak K Series uses CLEAK Semi-conductor High-Technology – a semiconductor-based cooling system rather than a traditional compressor. This means it operates without refrigerant, produces no noise, and has no vibration. It also uses a Smart Hybrid Cooling System that combines both air and water cooling for optimal cold-water performance.
No. Because it uses semiconductor cooling instead of a compressor, the Cleak K Series produces no mechanical noise and no vibration during operation. This makes it suitable for open-plan kitchens, home offices, and any environment where noise is a concern.
No. Unlike reverse osmosis (RO) systems, which typically require a drain line for wastewater, the Cleak K Series requires no drainage installation. This significantly simplifies setup and means it can be installed in locations where running a drain pipe is impractical or not permitted.
The Cleak K Series includes an Advanced Dual Anti-condensation System, which prevents water droplets from forming on the exterior of the unit – a common problem with cold-water dispensers in Singapore’s humid climate. This keeps the unit dry and the surrounding countertop clean.
FILTERS & MAINTENANCE
The Cleak K Series has a 3-step filter change indicator displayed on its LED touch screen. It calculates filter life using two methods simultaneously: by time elapsed and by total water volume dispensed. The three stages are: 60% or more remaining (green), 30-60% remaining (amber), and 30% or less (replace soon). This dual-method calculation ensures you replace filters based on actual usage rather than guesswork.
Yes. Both the Carbon Plus and Nano Plus filters are designed for DIY replacement. The swap takes approximately 10 seconds and requires no tools – the filter cartridges slot directly into place. This eliminates the need to schedule a technician visit for routine filter changes.
Filter lifespan depends on water usage and incoming water quality. Cleak’s smart indicator tracks both time and volume to give an accurate reading for your specific household. For precise lifespan data under Singapore water conditions, visit cleak.com.sg or contact Cleak directly.
DESIGN & COLOURS
The Cleak K Undersink (CK3UN) is available in four nature-inspired colours: Carbon Gray, Frost Gray, Blanc Gold, and Bronze Brown. The Cleak K Countertop (CK3CN) is available in three colours: Carbon Gray, Frost Gray, and Blanc Gold. All colours are designed to complement modern kitchen interiors.
The K Countertop (CK3CN) measures 148(W) x 445(D) x 411(H) mm and weighs 6.5kg. The K Undersink (CK3UN) faucet measures 73(W) x 157(D) x 330(H) mm (1.0kg), with the main unit measuring 148(W) x 385(D) x 411(H) mm (6.5kg). The undersink faucet’s 73mm width makes it among the slimmest faucet-form water purifiers available in Singapore.
Yes. The K Series includes a Mood Lamp – soft ambient lighting built into the unit that creates a subtle visual cue during dispensing and enhances the experience in low-light kitchen settings.
Yes. The K Series includes a Voice Guide feature that provides audio prompts to assist with operation – useful for users who prefer audio feedback or are less familiar with the touch display interface.
PURCHASE & SUPPORT
The Cleak K Series is available through Cleak’s official website at cleak.com.sg. For the most up-to-date information on authorised retailers, showrooms, and purchase options in Singapore, visit the website directly.
Yes. The Cleak K Series carries CB Certification (IEC Certification Body Scheme), an internationally recognised safety certification for electrical products. It also carries CE marking. Both certifications confirm the unit meets international electrical safety standards.
The Cleak K Series water purifier is manufactured in the Republic of Korea (South Korea). South Korea is home to a number of the world’s leading water purification technology companies, and Cleak’s manufacturing origin reflects this heritage of advanced water treatment engineering.