Nuonuo is hugging a filter cartridge and smiling.

Countertop Water Purifier – Quality Filtration Without Breaking

The countertop water purifier is a compact and efficient water filtration system that allows users to choose different types of filter cartridges, such as PP cotton filter cartridge, UDF filter cartridge, CTO filter cartridge, etc., based on their needs. It effectively removes impurities from water, enhancing the water taste and quality to meet daily drinking and cooking needs.

The countertop water purifier is usually installed on the kitchen counter and directly connected to the main water faucet. It has a small footprint, making it ideal for small households or users with limited budgets.

A three-stage countertop water purifier with a faucet and diverter valve
Structure
  1. Special faucet: Filtered water flows out from here, distinguishing it from unfiltered water.
  2. PP material housing: Wear-resistant, corrosion-resistant, long service life, and allows for quick manual replacement of the filter cartridge.
  3. Bracket: Supports the filter cartridge.
  4. Water supply hose: Used for conveying water flow.
  5. Diverter valve: Switches the direction of water flow, used to select water flow into different devices, for example, switching raw water to flow directly from the faucet or to the purifier for filtration.
Schematic diagram of the structure of each part of the countertop water purifier
Features
  • Long service life. It adopts a PP material housing, resistant to high temperatures and corrosion.
  • Improved water quality and taste. It can remove large particles, residual chlorine, and odors.
  • Special faucet. It is equipped with a special faucet for dispensing filtered water.
  • Portable design. Compact structure, lightweight, no complex installation required.
  • Low maintenance cost. The replacement time for the filter cartridge is usually 6–12 months.
Principle

The countertop water purifier connects directly to the faucet and switches between filtered and unfiltered water through a diverter valve. When filtered water is needed, turn the diverter valve, and the water flows through the filter cartridges (PP cotton filter cartridge, UDF filter cartridge, CTO filter cartridge, etc., optional) and is discharged from the special faucet.

A countertop water purifier connected to a faucet placed on the countertop
Specifications
Table 1: Countertop Water Purifier Specifications
Filter cartridge size 10"
Stages Single-stage / dual-stage / three-stage
Housing material PP / Stainless steel
Housing color White / Transparent
Filter cartridge PP / UDF / CTO / Ceramic filter cartridge (optional)
Inlet / outlet port 1/2", 1/4"or 3/8"
Inlet pressure 8–125 PSI