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         Ultrafiltration ~ WaterUS.com

        Natural Health Enterprises ~ trusted service since 1975 ~ online since 1995

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

         Home       Contact Us

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

         UltraFiltration (UF)

         Nearly Reverse Osmosis Purity In A Flow Through Unit

         (no holding tank ~ no waiting)

        UltraFiltration (UF) is a type of membrane filtration similar to Reverse Osmosis, using hydrostatic pressure to force water through a semi-permeable membrane. UltraFiltration is a pressure-driven membrane process not fundamentally different from reverse osmosis (RO), microfiltration (MF) or nanofiltration (NF), except in terms of the size of the molecules it retains.

        The pore size of the ultrafiltration membrane is usually 103 - 106 Daltons.

        UF is a barrier to suspended solids, bacteria, viruses, endotoxins and other pathogens to produce water with very high purity and low silt density.

        Suspended solids and solutes of high molecular weight are retained, while water and low molecular weight solutes pass through the membrane.

        A semi-permeable membrane, is a thin layer of material capable of separating substances when a driving force is applied across the membrane. Once considered a viable technology only for desalination, membrane processes are increasingly employed for removal of bacteria and other microorganisms, particulate material, and natural organic material, which can impart color, tastes, and odors to the water and react with disinfectants to form disinfection byproducts (DBP).

        As advancements are made in membrane production and module design, capital and operating costs continue to decline.

        The primary advantages of low-pressure UF membrane processes compared with conventional clarification and disinfection (post-chlorination) processes are:

        ?No need for chemicals (coagulants, flocculates, disinfectants, pH adjustment)
        ?Size-exclusion filtration as opposed to media depth filtration
        ?Good and constant quality of the treated water in terms of particle and microbial removal
        ?Process and plant compactness
        ?Simple automation

        UltraFiltration is used to remove essentially all colloidal particles (0.01 to 1.0 microns) from water and some of the largest dissolved contaminants. The pore size in a UF membrane is mainly responsible for determining the type and size of contaminants removed.

        In general, membrane pores range in size from 0.005 to 0.1 micron. UF membrane manufacturers classify each UF product as having a specific molecular weight cutoff (MWC), which is a rough measurement of the size of contaminants removed by a given UF membrane. Ours removes all molecules larger than .2 microns and many smaller than that.

        A 100,000 MWC UF membrane means that when water containing a given standard compound with a molecular weight of around 100,000 daltons is fed to the UF unit, nearly all of the compounds will not pass through the membrane.

        Substances with a molecular weight of 100,000 daltons have a size of about 0.05 microns to about 0.08 microns in diameter.

        UF membranes are used where essentially all colloidal particles (including most pathogenic organisms -- parasites and bacteria) must be removed, but most of the dissolved solids may pass through the membrane without causing problems downstream or in the finished water. UF will remove most turbidity from water.

        The water flows through the UF membrane at a rate that is slower than with other filtration media, but rapid enough to collect without need of a holding tank or a long period of waiting to fill a collection vessel.


        IMPORTANT NOTE: Due to extra shipping surcharges incurred by the company during the altered business climate of medical shut-down, after ordering online a shipping charge will be requested by email for any order under $250 product cost until further notice. This shipping charge varies from $6.75 for a shower filter, to $10.50 each for most water purifier replacement cartridges, to $23 for most water purifier units with a housing.

        Also, please be aware of the risk of porch piracy. There can be no refund for an item stolen after delivery, so if concerned, please request the package not be left if no one is home.

        Order UltraFiltration Systems on the Order Page


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        CLICK HERE for Payment Details.



        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 40 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.

        Visit other pages of WaterUS.com:

        Choosing a Water Purifier

        Counter Top Filter Systems I<>I Under Counter Filter Systems I<>I Shower & Bath Units  I<>I Whole House Systems

        Replacement Items I<>I UltraFiltration I<>I Reverse Osmosis I<>I AquaWizard Faucet RO  

         Fluoride Removal I<>I Re-mineralizing Alkalizer I<>I Alkaline Water /"Corrected Water" I<>I Sterilization

        Inline Filters (Refrigerators, RV's, Boats) I<>I Water Cooler Systems I<>I Mini Travel Filter I<>I Pour Thru Pitcher Filters

        Catalyst Activated Willard Water I<>I Redox Media (KDF) I<>I Pictures I<>I FAQ's I<>I Certifications I<>I Installation    

        About Us I<>I Contact Us


        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.

        Natural Health Enterprises

        good old trusted service

        since 1975 ~ online since 1995

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

        10 am - 5 pm Eastern Time, Monday-Friday

        Please visit our other websites for:

        Natural Health Info & Products I<>I Herbs

        Organic Milled Flax Seed I<>I Super Foods I<>I Cell Phone Harm

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        Natural Health Enterprises

        trusted service since 1975

        Copyright 2011-2020 by Natural Health Enterprises -- All rights reserved.



        Payment Options



        Our clickable pay links take you to the PayPal secure online payment service, where you can use your major credit card or debit card, or your PayPal account (if you have one), in a totally safe & secure process.

        (PayPal, which is owned by eBay, is the most used online payment processor.  It is used confidently and respected all over the world.)

        For items on this page, just click the pay link for the item or package you select.

        Upon completing the PayPal payment process, if you click "Continue", you will go to a page with links to several of our sites. From there, you can come back to this site if you want to order another item, which may be sent to some other address.

        After making your payment, PayPal will send an email to you confirming your order details. (It is possible that this email could be blocked by a SPAM filter at your internet service provider.) Allow up to 10 days or so for processing, packing, shipment and delivery. If you have not received your order within an appropriate time, contact us so we can check on it.


        2) ORDER BY PHONE by Check or Card


        IF YOU WANT TO PAY BY PHONE using either your checking account or a credit card or debit card, call us toll-free at 1- 800-542-1923 (10 am to 5 pm Eastern Time, Monday-Friday).

        (If we are unavailable when you call, leave your phone number and good times to reach you.)


        3) ORDER BY MAIL

        You can "snail mail" a check or Money Order made out to "Natural Health" by contacting us for our mailing address.

        NOTE: There will be a $10 surcharge processed on your checking account if your check is returned for insufficient funds.



        The shipping charges at this website are for destinations in the contiguous United States. For locations in Alaska, Hawaii, Canada, Mexico, and other nations, contact us about ordering.

        Most of our water purifier products are shipped directly from the manufacturer.

        If you have a question, contact us.

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