The 4-in-1 boiling water system integrates a multi-functional faucet, instant hot water machine, and water purifier into one system and is installed under the sink, saving installation space and making the kitchen work surface more user-friendly.

Professional 4 In 1 Water Tap System Manufacturer
4 In 1 Water Tap Systems are Smart Water Tech star products. Smart Water Tech has been focusing on the manufacturing of 4-in-1 boiling water systems for almost ten years. Over these years, we have accumulated a lot of manufacturing experience. We are a manufacturer behind many of the top international under-sink drinking water system brands. We can customize 4 in 1 boiling water tap system for you, welcome to consult us.
Customized Multi-functional Kitchen Faucet
You can customize 4 in 1 boiling water tap. We have a variety of taps to choose from, from material, shape, surface treatment, function can be customized.
how to choose a Digital Boiler Tank?
We have many different models of under-sink digital boiler tanks. When choosing a water boiler, you need to consider the size, temperature control, tank capacity, electric heating power, water flow rate, material, whether there is a display screen, etc.
Tap Boiler size can be customized by 2L, 2.4L, 3L, 4L, 5L, 7L, 8L and other capacities.
Our water dispenser adjusts temperatures from 45 to 98 degrees.

Customized Water Filter
The difference between water purifiers lies mainly in the difference in filter elements. The choice of filter element material and the number of filter elements should be determined according to the water quality and water consumption in the user's area.
Customized Sink Water Chiller
Under sink water chiller allows us to have ice water when we turn on the tap, so we don't need a refrigerator to chill water, and it won't take up space in the refrigerator.
The selection of chillers depends on the size of the machine, the temperature range, the noise level during operation, and other parameters.
What's the Difference? 3 in 1 tap, 4 in 1 Tap,5 in 1 tap
The main difference is that 3-in-1 taps dispense:
- Filtered Boiled Water
- Filtered Water
- Ambident Hot water & Cold water
4-in-1 taps dispense:
- Filtered Boiled Water
- Filtered Water
- Ambident Hot water & Cold water
- Filtered chilled water
4 in 1 water tap system has one more chiller than 3 in 1 water tap system.
5-in-1 taps dispense:
- Filtered Boiled Water
- Filtered Water
- Ambident Hot water & Cold water
- Filtered Chilled water
- Sparkling Water
The 5 in 1 water tap system has one more CO2 tank than the 4 in 1 water tap system.
They have different functions and installation costs. If you have a large kitchen cabinet space and a sufficient budget, you can choose a 5-in-1 tap system, which can meet all your water needs.
Why choose Smart Water Tech as your 4 In 1 Water Tap System supplier
As a professional OEM/ODM manufacturer, Xiamen Smart Water Tech is the approved supplier for many famous world brands.
We always feel that our company's success is directly related to the quality of our products. Our factories meet the highest quality requirements stipulated in ISO 9001, ISO 14000:14001, SGS guidelines, and our stringent quality control system.
Our products also pass UL, CB, CE, ERP, WRAS, UKCA, RoHS, REACH, PAHS, and SCCP international standards.
We reinvest 10% of our sales revenue in R&D. We have 5 invention patents, 21 utility model patents, and 28 appearance patents. Our high-quality R&D team can efficiently design new products, analyze and improve existing products, and provide customers with the most cost-effective products.
We have two factories in China. Welcome to visit our factories.

Xiamen Smart Water Tech Plant 1

Xiamen Smart Water Tech Plant 2
Q: What is a 4-in-1 water tap system?
A: A 4-in-1 water tap system is a multifunctional kitchen faucet that combines four basic functions: regular hot and cold water, filtered drinking water, and boiling water. This design saves space, improves convenience, allowing users to easily switch between different water sources, making it an ideal choice for modern kitchens.
Q: Is the 4-in-1 water tap easy to install?
A: Yes, the installation process of the 4 in 1 tap is usually simple, and you can install it yourself by following the steps in the instruction manual. If you are not familiar with plumbing work, you can also ask a professional plumber to install it.
Q: What is your MOQ?
A: Our MOQ is 50PCS per order. The quantity can be 30 pieces for first trial orders or some regular products. Meanwhile, we stock some products in the USA and Germany, and you can also directly buy from us in small quantities if we have overseas stock.
Q: How do I get a sample?
A: Sample order is acceptable. Pls contact us and make sure what sample you need.



























