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Enjoying clean, fresh-tasting water every time you turn on the tap is a main reason to choose the eSpring® Water Purifier, but it’s not the only one. From the certifications it has received to its performance and technology, it is easy to see why eSpring is the best choice for quality water.


WQA Gold Seal
Technical Merits


NSF® International is an independent, not-for-profit public health organization that helps consumers by maintaining standards for food, water, and consumer goods, as well as certifying products according to these standards.

The eSpring® Water Purifier is the first home water purifier to feature a carbon/UV system that meets NSF International Standards 42, 53, 55, and 401. These standards are recognized worldwide for water quality.

The eSpring Water Purifier is certified by NSF for reducing more contaminants than any other carbon-based UV filtration system. The eSpring Water Purifier reduces more than 140 potential health-effect contaminants in drinking water and uses UV technology to treat water without chemicals.


eSpring® Water Treatment Systems have been awarded the WQA Gold Seal. The WQA (Water Quality Association) developed the Gold Seal program to help consumers identify high quality water treatment systems. Only systems that have met or exceeded tough industry standards can earn a Gold Seal.

Consumers can identify WQA-validated products by looking for the Gold Seal mark or through product listings in the Validated Water Treatment Equipment Directory available from the WQA.


  • The eSpring® Water Purifier was the first in-home system to combine UV light technology with a multi-stage carbon-block filter into one easy-to-replace cartridge. The cartridge has a high flow rate of 0.9 gpm (3.4 lpm) with a rated life of 5,000 liters (1,320 gallons) or one year.
  • The ultraviolet light in the eSpring Water Purifier features instant-on technology. Turning on the tap activates a sensor that energizes the lamp immediately to deliver a 40 mj/cm2 dose of UV light to treat water without chemicals. Because the UV lamp is not constantly on, it won’t heat the water or waste energy.
  • eSpring reduces more than 140 potential health-effect contaminants that may be present in drinking water.
  • eSpring was the first water treatment device to power a UV lamp wirelessly with adaptive inductive coupling. It was the product that started the wireless power revolution (see ecoupled.com). The design eliminates exposed electrical connectors to the lamp, improving reliability and simplifying cartridge replacement. It also provides consistent UV lamp performance over time.
  • The system has an environmentally preferred design. It is ROHS compliant and designed to last for 10 years. The monitor incorporates an LED display in standby mode and uses an instant-on UV lamp for lower energy consumption. The all-in-one cartridge, replaced once a year for most consumers, creates less waste.