www.sfgate.com
For the original version on PRWeb visit: www.prweb.com/releases/prweb2011/01/prweb4982084.htm
by Superior
Water Filter
List Price:
$89.00
Price:
$41.68 & this item ships for FREE with Super Saver Shipping.
You Save:
$47.32 (53%)
In Stock.
Sold by Purenex and Fulfilled by Amazon.
This counter top unit sits on the counter and easily connects to most any kitchen faucet. A diverter valve replaces the aerator on your faucet. In the regular position, water exits straight through its own aerator. When filtered water is desired, turn on the cold water and pull out on the diverter valve knob - water is routed through the filter and out its own swivel spout. Uses a replaceable carbon block cartridge (included), in a single space-saving housing. This cartridge is manufactured using a patented process that yields a cartridge with a nominal 10 micron filtration rating, high dirt-holding capacity. A high porosity design helps prevent the cartridge from plugging before its adsorption capacity is exhausted, maximizing the utilization of the carbon while maintaining low pressure drop, 6,000 gallons chlorine taste & odor reduction. Flow rate is .75 to 1 gallon per minute. For cold water use only, includes two diverter adapters, spout, chrome diverter valve. Includes chlorine test strips to verify when it's time to replace cartridge.
Water Filter
by Aquasana
Water Filter
List Price:
$249.94
Price:
$199.95 & this item ships for FREE with Super Saver Shipping.
You Save:
$49.99 (20%)
In Stock.
Product Specifications
Part Number:
AQ-4501.56
Color:
Polished Chrome
Item Package Quantity:
1
Remove pollutants, maintain healthy minerals. The Aquasana Premium Under Counter water filtration system uses the same drinking filter that won Health Magazine's "Healthiest Product" award for 2010, but offers a convenient installation that allows you to get healthy, clean water directly from a separate tap that matches your kitchen fixtures. This water filter uses Aquasana's unique selective filtration process: a combination of carbon filtration, ion-exchange and sub-micron filtration to produce clean, healthy water. Our drinking water filter products are certified to NSF standards 42 & 53 to reduce sediment, chlorine, lead, herbicides, pesticides, cysts, VOCs, SOCs, THMs and bad taste & odor. Our unique filter also leaves in healthy minerals for optimum hydration. Since Aquasana filter cartridges last 6 months or 500 gallons, you're getting the healthiest water and the best value.
Aquasana's Premium Under Counter Drinking Water Filter installs in minutes without the need for a plumber! Aquasana Provides Healthy, Great Tasting Water Conveniently At Your Sink.
Replace the filter cartridges every six months with Aquasana AQ-4025 dual cartridge replacement filters. Always have fresh filters right when you need them, receive a 20% discount on replacements and extend your system warranty with Aquasana's Water For Life auto-ship cartridge program.
Contaminant Reduction:
99.3% of Chlorine taste and odor
98.7% of Lead @ 6.5pH
99.0% of Lead @ 8.5pH
99.987% of Cryptosporidium (cyst)
98.46% of Particulate, Class I particles 0.5 to <1µm
99.6% of VOCs(by surrogate testing using chloroform)
>95% of Trihalomethanes*(THMs)
*V.O.C.s tested by chloroform surrogate as specified in NSF Standard 53.
For an expanded list of contaminants reduced please see the Aquasana AQ-4000 performance sheet. Performance testing was perfomed by Underwriters Laboratories to NSF Standards 42 & 53. While testing was performed under standard laboratory conditions, actual peformance may vary. California Department of Health Certificate #06-1792
Water Filter
by 3M
Water Filter
List Price:
$37.99
Price:
$27.60 & this item ships for FREE with Super Saver Shipping.
You Save:
$10.39 (27%)
In Stock.
Sold by pieceofmindmedia and Fulfilled by Amazon.
Product Specifications
Part Number:
3US-PF01
Item Package Quantity:
1
Item Dimensions
Weight:
1.7 Pounds
Replacement filter for the 3M Filtrete 3US-PF01 Under-Sink Professional Water Filtration System.
Fits Filtrete 3US-AS01, 3US-PS01, and Whirlpool WHCF-SUF, WHCF-SUFC water filter systems. <SPAN style="FONT-FAMILY: Arial; FONT-SIZE
Water Filter
by PUR
List Price:
$19.99
Price:
$17.99 & eligible for FREE Super Saver Shipping on orders over $25. Details
You Save:
$2.00 (10%)
Size: 3 Pack
1-Pack
2 Pack
3 Pack
4 Pack
Save an extra subscribe_discount% with Subscribe & Save: Sign up to have this item delivered at a regular interval of your choice, and the current price drops to discounted_price. Shipping is always free. No fees, no risks, no obligations.
Subscribe & Save at Amazon.com: Get an extra subscribe_discount% off Amazon.com's current price on this product when you sign up for Subscribe & Save delivery and buy directly from Amazon.com. Subscribe & Save shipping is always free. No fees, no risks, no obligations.
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
22 new from $14.99 2 used from $16.99
Size: 3 Pack
Size: 3 Pack
Product Description
Size: 3 Pack
Keep drinking chemical- and odor-free water with a new PUR water filter. This pack of three replacement filters fits PUR’s Ultimate Water Filtration Dispenser and Pitcher. They reduce cadmium, cryptosporidium, giardia, lead, mercury, asbestos, copper, zinc, and sediment 96 to 99.99 percent; plus lessen chlorine levels and discoloration.
PUR’s filters are made with activated carbon to reduce chlorine and sediment, and include an ion-exchange resin that helps eliminate lead and copper. For best results, filters should be changed every 40 gallons. While PUR filters rid water of many chemicals, coloration, and bad flavors, they do not soften water or remove fluoride. This package of filters measures 7.9 by 7.6 by 2.7 inches, and weighs 2 pounds. --Jessica Reuling
Replacement filters for use with the Pur 2 Stage Water Pitchers. Filters conveniently provide up to 40 gallons (1 to 2 months) of crystal clean water. Reduces lead and removes microbiological cysts while leaving beneficial fluoride in the water. Can also help remove 96% of trace pharmaceuticals found in some tap water supplies.
Water Filter
by General Electric
Size Name:
1-Pack: $32.992-Pack: $62.743 Pack: $94.954-Pack: $132.156-Pack: $192.00
List Price:
$62.12
Price:
$32.99 & this item ships for FREE with Super Saver Shipping. Details
You Save:
$29.13 (47%)
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
Product Specifications
Part Number:
MWF
Size:
1-Pack
Item Package Quantity:
1
Item Dimensions
Length:
8 inches
Width:
10 inches
Height:
6 inches
GE MWF Refrigerator Water Filter is easy to replace with no special tools required. No need to even turn off the water, simply turn the filter to the left to remove. A check valve stops water flow and prevents leakage. Insert a new filter and turn to the right. It replaces GE water filter part numbers GWF, GWFA, GWF01, GWF06, MWFA, and Hotpoint HWF, HWFA . This GE water filter works with a wide-range of GE and Hotpoint models and should be replaced every six months. An adapter may be needed if you have the following filters: FXRC, FXRT, MXRC, HXRT, WR97X10006, and Kenmore 46-9905.
The General Electric (GE) MWFDS SmartWater Refrigerator Filter reduces lead cysts, asbestos, mercury, and other sediments and pesticides as well as tastes and odor from chlorine treatment for better tasting and healthy water. The filter is NSF tested and certified. Manufacturer number: MWFDS. SKU number: 4299855.
Water filters have a long history as a method of water purification, beginning as early as 2000 b.c.e. in ancient Egypt. Filtration has evolved from the simple Hippocratic sleeve of ancient Greece, made from cloth, to the complicated solid block carbon and multimedia water filters currently on the market. Water filtration is now the premier method of water purification, removing more water contaminants, more efficiently, than any other technique.
The Process:
The filtration process involves some type of filter media, over which water flows. This filter media blocks passage of contaminants through physical obstruction, chemical adsorption, or a combination of both processes. Material construction of the filter media varies widely, but the most effective medias are made from carbon or a combination of carbon with other elements. Modern filtration technology allows water filters to remove more and more contaminants through the chemical process of adsorption. In the adsorption process, contaminants are encouraged to break their bond with water molecules and chemically adhere to the filter media. Generally, water goes through several stages of filtration to ensure that each filter media will remove the ultimate number of contaminants. Water normally passes through a water filter at a relatively low speed, in order to ensure adequate contact time with the filter media. Once the water has passed through the required stages of filtration, it emerges as pure drinking water, free from contamination.
Pros and Cons:
Unlike reverse osmosis and distillation process, water filters are not limited in the type or size of contaminants they can remove. Thus, water filters are able to remove far more contaminants than any other purification method. Also, because they use the chemical adsorption process, water filters can selectively retain healthy trace minerals in drinking water.
Filtration is the only one of the three water purification methods that is capable of removing chlorine, chlorine byproducts, and VOCs from drinking water. Chlorine and VOCs are the most dangerous and threatening contaminants of municipally treated drinking water. Besides the removal of these dangerous chemicals, water filters also extract from drinking water the chlorine-resistant protozoa giardia and cryptosporidium. These protozoa have plagued the water treatment industry for several decades and have caused a number of epidemics of severe gastrointestinal disease, contracted through drinking contaminated water.
Water filters, because they do not require the costly energy sources of reverse osmosis and distillation, provide a source of relatively inexpensive, purified water. Also, water filters waste very little water, as compared to reverse osmosis and distillation systems.
Depending upon the type of filter used, water filtration may be a less than ideal form of water purification. For example, granular filters do not utilize the chemical adsorption process, allowing several contaminants to pass through the filter media. Likewise, rapid water filters allot water inadequate contact time with the filter media, limiting the number of contaminants that may be removed. Solid block carbon filters solve both of these problems by using both adsorptive and slow filtration processes. Solid block carbon filters are absolutely the best and most effective water filters available.
Harmful chemicals constantly escape into the air in a home from the dishwasher, the toilet, and the shower.
The release of water contaminants into the air results in poor air quality in a home. This poor air quality is a leading cause of asthma and bronchitis.
The use of a countertop water filter and shower filter cannot entirely protect a home from harmful water contaminants.
Shower filters, because they must filter water at extreme temperatures, are not 100% effective at removing all dangerous contaminants.
Many skin rashes and other irritations are a result of chlorine and volatile organic chemicals VOCs) that have become embedded in clothing washed in chlorinated water.
The dishwasher releases more chlorine into the air than any other water source in the house, besides the shower.
The use of a whole house water filter is the only way to ensure pure, filtered water from every water source in the house.
A whole house water filter purifies water efficiently and cost-effectively, making it a viable solution to drinking water contamination for a majority of people.
The 2100 known water contaminants can make their way into our bodies not just from drinking the actual water but also from inhalation and dermal absorption.
Merely avoiding drinking tap water by indulging in bottled water is not an effective means of protection against dangerous water contaminants.
Water filters provide better tasting and better smelling drinking water by removing chlorine and bacterial contaminants.
Point-of-use water filters remove lead from drinking water immediately prior to consumption, thus preventing this harmful substance from entering the body.
The purchase of a countertop filter results in a source of clean, healthy water that costs much less than bottled water.
Water filters greatly reduce the risk of rectal cancer, colon cancer, and bladder cancer by removing chlorine and chlorine byproducts from drinking water.
A solid block carbon water filter can selectively remove dangerous contaminants from drinking water while retaining healthy mineral deposits that balance the pH of drinking water.
Drinking clean, filtered water protects the body from disease and leads to overall greater health
A water filter provides clean, healthy water for cooking, as well as drinking, at the convenience of tap water.
Water filters reduce the risk of gastrointestinal disease by more than 33 percent by removing cryptosporidium and giardia from drinking water.
Drinking pure water is especially important for children. Water filters provide the healthiest water for children’s developing immune systems
Water filters offer the last line of defense between the body and the over 2100 known toxins that may be present in drinking water.
Although Reverse Osmosis seems like a complex system it is really a simple and straightforward water filtration process. And it's not a new process. High-pressure (pump driven) reverse osmosis systems have been used for years to desalinate* water – to convert brackish or seawater to drinking water. Having a better understanding of how a reverse osmosis system works will eliminate the mystery and confusion you may feel when you look at a reverse osmosis system -- with its many colored tubes and multitude of filters. Read on to enhance your knowledge of residential reverse osmosis systems.
The most important points to remember:

Reverse Osmosis is a process in which dissolved inorganic solids (such as salts) are removed from a solution (such as water). This is accomplished by household water pressure pushing the tap water through a semi permeable membrane. The membrane (which is about as thick as cellophane) allows only the water to pass through, not the impurities or contaminates. These impurities and contaminates are flushed down the drain.
For a definition of **Reverse Osmosis.
Ultimately, the factors that affect the performance of a Reverse Osmosis System are:

A reverse osmosis membrane will remove impurities and particles larger than .001 microns.

TYPICAL REJECTION CHARACTERISTICS OF R.O. MEMBRANES
Elements and the Percent R.O. Membranes will remove
Sodium
Sulfate
Calcium
Potassium
Nitrate
Iron
Zinc
Mercury
Selenium
Phosphate
Lead
Arsenic
Magnesium
Nickel
Fluoride
Manganese
Cadmium
Barium
Cyanide
Chloride
85 - 94%
96 - 98%
94 - 98%
85 - 95%
60 –75%
94 – 98%
95 – 98%
95 – 98%
94 – 96%
96 – 98%
95 – 98%
92 – 96%
94 – 98%
96 – 98%
85 - 92%
94 – 98%
95 – 98%
95 – 98%
84 – 92%
85 – 92%
% may vary based on membrane type water pressure, temperature & TDS

While one RO System may look just like the next in terms of design and components, the quality of those components can be very different. These differences can have a significant impact on the quality of the water the system produces.
Here are some examples of questions you might ask and consequences associated with "less than desirable" quality.
The main reason to change to a higher flow reverse osmosis membrane is to improve the recovery rate which is to reduce the amount of time it takes to refill the storage tank. This insures that there is adequate water available during times of heavy usage or when the reverses osmosis system may feed more than one location such as an ice maker and a dispensing faucet.
Changing to a higher flow membrane has no effect on the quality of the water your reverse osmosis system makes or the length of time the reverse osmosis membrane will last.
The change to a higher capacity membrane is easy. You simply replace your old membrane with a new, higher capacity membrane, along with the correctly sized drain line flow restrictor. (Matching the membrane with the correctly sized drain line flow restrictor is important to ensure the proper product to waste ratio is meet. A mis-matched combination will allow either excess water to flow to the drain or cause premature fouling of the membrane.) Most standard reverse osmosis membrane housings will accommodate membranes ranging in capacities from 10 – 150 gallons per day.
