Certifications   ~  Waterus.com

Natural Health Enterprises

trusted information, products & service since 1975 ~ online since 1995

"the water you want to drink"

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Natural Health Enterprises ~ 330-920-9820 ~ Toll Free in USA: 800-542-1923 ~ 10 am - 5 pm ET, M-F


 Of Our Crystal Quest Water Purifiers

We at Natural Health Enterprises have been selling water purifiers for more than 40 years, since 1975. We have always sought to offer the most effective and highest quality products available at the lowest possible prices.

Almost all the units we present are manufactured by Crystal Quest, also in business for over 30 years. Crystal Quest is approved by QAS International for the high quality of their administration systems. Our water systems are certified by the NSF (National Sanitation Foundation), which tests water purifiers for meeting standards of effectiveness such as those set by ANSI (American National Standards Institute). More about these certifications below.



Crystal Quest® Manufacturing’s commitment to quality craftsmanship continues to be shown through not only being the FIRST manufacturer in our industry to be ISO 9001:2008 certified, but that we continually surpass all required audits as well.

ISO 9001: 2008 is an internationally recognized Quality Management Standard that requires a company to identify, define, document, implement, monitor and measure, and continually improve the effectiveness of its processes for the purposes of enhancing Customer Satisfaction. Companies must undergo third-party audits by accredited certification boards in order to become ISO 9001:2008 certified.

ISO Standards

  • make the development, manufacturing and supply of products and services more efficient, safer and cleaner
  • safeguard consumers, and users in general, of products and services
  • facilitate trade between countries and make it fairer
  • provide governments with a technical base for health, safety and environmental legislation, and conformity assessment  
  • make life simpler by providing solutions to common problems
  • share technological advances and good management practice
  • disseminate innovation 

Selecting a manufacturer that voluntarily holds itself to these high standards ensures you will receive a quality product and dedicated customer service. With its vertically integrated processes and strict quality control procedures, Crystal Quest® Manufacturing has been dedicated to the highest standards since its inception.

(ISO Certification Details Available on Request)



NSF/ANSI Standard 42: Drinking Water Treatment Units - Aesthetic Effects
Overview: This standard covers point-of-use (POU) and point-of-entry (POE) systems designed to reduce specific aesthetic or non-health-related contaminants (chlorine, taste and odor, and particulates) that may be present in public or private drinking water.

(More about NSF and ANSI below.)

Click here to view NSF/ANSI 42 certification.



NSF Standard 53

Click here for the NSF Standard 53 Test protocol for the Eagle Redox Alloy 9500, ERA 6500 and the Granular Activated Carbon used in our water purifier systems.



NSF/ANSI Standard 61:
Drinking Water System Components -- Health Effects is the nationally recognized health effects standard for all devices, components and materials which contact drinking water.

Click here to view NSF/ANSI 61 certification.



More about NSF and ANSI

NSF Standards were developed by the National Sanitation Foundation. NSF International is a world renowned scientific and technical expert in the health and environmental sciences. Its professional staff consists of engineers, chemists, toxicologists, and environmental health professionals.

NSF is an internationally recognized, not-for-profit, third-party testing organization that tests and certifies home water filtration systems to ensure they meet strict public health standards. Certified products that have been tested to verify that they meet certain standards for health and aesthetics will have the logo mark on the right.

This ultimately results in giving customers the assurance that the filter system they are about to buy will do what the manufacturer’s literature says it will do.


Benefits of NSF certifications:

  • Filter reduction claims are true ensuring you are buying the right water treatment system.
  • No harmful chemicals will be added to the filtered water.
  • The system unit is structurally sound according to specifications.
  • The filtration system is as advertised; no misleading literature and labeling.


About NSF:
NSF International, The Public Health and Safety Company™, a not-for-profit, non-governmental organization, is the world leader in standards development, product certification, education, and risk-management for public health and safety. For 60 years, NSF has been committed to public health, safety, and protection of the environment.

While focusing on food, water, indoor air, and the environment, NSF develops national standards, provides learning opportunities through its Center for Public Health Education, and provides third-party conformity assessment services while representing the interests of all stakeholders. The primary stakeholder groups include industry, the regulatory community, and the public at large.

NSF is widely recognized for its scientific and technical expertise in the health and environmental sciences. Its professional staff includes engineers, chemists, toxicologists, and environmental health professionals with broad experience both in public and private organizations.

NSF has earned the Collaborating Center designations by the World Health Organization (WHO) for Food and Water Safety and Indoor Environment.

Serving manufacturers operating in 80 countries, NSF was founded in 1944 and is headquartered in Ann Arbor, MI USA. The NSF Mark is recognized for its value in international trade around the world and is respected by regulatory agencies at the local, state, and federal levels.

About ANSI :
The American National Standards Institute (ANSI) is a private, non-profit organization (501(c)3) that administers and coordinates the U.S. voluntary standardization and conformity assessment system.

The Institute's mission is to enhance both the global competitiveness of U.S. business and the U.S. quality of life by promoting and facilitating voluntary consensus standards and conformity assessment systems, and safeguarding their integrity.



CE-certification or CE Marking is a conformity marking consisting of the letters “CE”. The CE Marking applies to products regulated by certain European health, safety and environmental protection legislation.

The CE Marking is obligatory for products it applies to: the manufacturer affixes the marking in order to be allowed to sell his product in the European market.

CE is an abbreviation for Conformité Européenne’, French for ‘European Conformity’. The CE Marking indicates that the product it is affixed to conforms to all relevant essential requirements and other applicable provisions that have been imposed upon it by means of European directives, and that the product has been subject to the appropriate conformity assessment procedure(s). The essential requirements refer, among other things, to safety, public health and consumer protection.

Click here to view CE Certification 



including "Corrected Water" systems

"The Water You Want" ~ Pure Energized Water Fit To Drink


       Single Counter Top Filter       Under Counter R.O. System

One of our point-of-use Redox & Carbon units or reverse osmosis systems will effectively reduce or remove the following contaminants:

~algae  ~bacteria  ~parasites  ~mold/fungus  ~bad taste  ~bad odor  ~pesticides (eg. Endrin, Lindane, Methoxychlor, Toxaphene, etc.) ~herbicides (eg. Silvex; 2, 4-D; etc.)  ~fertilizers  ~nitrates  ~detergents  ~PCB's  ~THM's  ~arsenic ~aluminum  ~barium  ~cadmium ~chlorine ~chromium ~fluoride ~hydrogen sulfide ~iron  ~lead  ~mercury  ~radon ~selenium ~and many more

We have been in the water purification business for over 45 years.

All components of our water systems are free of BPA.

WARRANTY: Our point-of-use water filtration system housings and hardware have a warranty to be free of defects in materials and manufacture, with repair or replacement for up to one year from date of purchase, and our water cartridges for up to 90 days. (See return and liability policies.)

NOTE: For those on fluoridated city water, our special flow through units for fluoride removal or our reverse osmosis systems will thoroughly eliminate fluoride. All of our drinking water purifiers have replaceable cartridges, and clear installation instructions. We also have whole house systems.



NOTE: You can purchase the products presented at any of our websites with confidence of their quality and of the integrity of the companies that provide them.

This is a small independent business needing your support to continue offering important information and outstanding essential products. Please consider making a purchase and refer your friends. Thank you.


Natural Health Enterprises

trusted information, products and service

since 1975 ~ online since 1995

330-920-9820 ~ Toll Free in USA: 800-542-1923

10 am - 5 pm Eastern Time, Monday-Friday



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Natural Health Enterprises

trusted information, products & service since 1975

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