Arsenic Water Filters and Purifiers

Arsenic can be found in wells and ground water in two forms:  Arsenic V (inorganic),  pentavalent, arsenate and Arsenic III (organic), Trivalent, arsenite.  KDG/GAC cartridges will only remove inorganic arsenic, Arsenic V, and reverse osmosis membranes will remove both forms.  KDF removes heavy metals, pesticides and fertilizers. However, arsenic removal is not as simple as some of the other contaminants.  To remove Arsenic III, you need to change its structure to Arsenic V, and chlorination is used in this method. Another method, using a specially treated iron oxide media (see cartridge below), will remove both types of arsenic. Here are links to articles and methods for removing arsenic:

Arsenic in Drinking Water
Safe Water Technology for Arsenic Removal
Practical Methods for Removal of Arsenic from Subsurface Aquifiers and Drinking Water Systems
Arsenic Water Treatment for Individual Wells in Maryland
Nanoparticles remove arsenic from drinking water

Our CTD-AR filter was recently tested and compared to two other filters in a study from the College of Engineering, The Ohio State University, entitled "Assessment of the Drinking Water System and Water Quality at
Montaña de Luz and Nueva Esparanza, Honduras
Spring Break 2008" with excellent results!

EPA's acceptable level for arsenic in water is 10 ppb (or .010 mg/L)

Filter AR.  This is the only 10" standard housing cartridge (for removing both Arsenic III and Arsenic V using a proprietary iron oxide media, capacity: 1000 gallons (approximately 1 year).  Designed to treat .050 mg/L (ppm) of total arsenic to less than the EPA standard .010 mg/L (based on a pH of 8.5).  For best performance, water flow rate should be 0.5 gpm or less,  pH from 6.5 to 8.5, less than 0.5 ppm iron and less than 0.05 ppm manganese.  Also removes lead, chromium, cadmium, molybdenum, zinc and antimony.  The iron oxide media is NSF-61 certified. 10" cartridge (9.75 x 2.75), fits most standard housings.  Click for cartridge data sheet.  Suggested Retail - $119.95, Sale Price - $89.95. ORDER NOW! VIEW CART/CHECKOUT.  Cartridge is designed for levels of arsenic at 50 ppb (0.050 ppm) or less. If your arsenic levels are above 50 ppb, then call or e-mail for other options. For under-counter or countertop point of use applications.  Will not work as a whole house filter.

Filter AR-BIG BLUE.  This is the only 10" Big Blue cartridge--9.75 x 4.5, (for removing both Arsenic III and Arsenic V using a proprietary iron oxide media (see information above), capacity: 3000 gallons (approximately 3 years). Suggested Retail - $219.95, Sale Price - $171.95. ORDER NOW! VIEW CART/CHECKOUT

Countertop and Under-counter Arsenic Water Filters

Model CTD-AR: Double Countertop Water Filter with Arsenic Pre-filter (reduces arsenic V and III)

Sale Price: $219.95 [Suggested Retail Price: $355]
ORDER NOW! VIEW CART/CHECKOUT

Model CTD-AR. This dual-cartridge countertop filter uses an iron oxide cartridge (listed above) as a pre-filter to effectively reduce Arsenic V and Arsenic III levels from water containing 50 ppb or less, good for approximately 1 year.  The second cartridge is our 12,000 gallon capacity KDF/GAC filter. A diverter valve replaces the aerator on your faucet (see description above). Includes chlorine test strips to verify when it's time to replace cartridge. 12" high, 5" diameter. 3 year prorated warranty on cartridge, 5 year on housings. Suggested Retail - $355, Sale Price - $219.95 plus free shipping (continental US only). ORDER NOW! VIEW CART/CHECKOUT.  Click for Installation Instructions. Click for recent test study and results.

Model UCD-AR: Double Under-counter Water Filter with Arsenic Pre-filter (reduces arsenic V and III)

Sale Price: $249.95 [Suggested Retail Price: $455]
ORDER NOW! VIEW CART/CHECKOUT

Model UCD-AR. This dual-cartridge under-counter filter uses an iron oxide cartridge (listed above) as a pre-filter to effectively reduce Arsenic V and Arsenic III levels from water containing 50 ppb or less, good for approximately 1 year.  The second cartridge is our 12,000 gallon capacity KDF/GAC filter.  It removes chlorine, heavy metals, pesticides and more (see What's KDF).  Must run the filter at 0.5 gpm or less to effectively remove arsenic.  Includes chlorine test strips to verify when it's time to replace cartridge. 12" tall, 10" wide, 5" deep. 3 year prorated warranty on KDF/GAC cartridge, 5 year on housings. [NSF-53 Standard Test Results] Suggested Retail - $455.00, Sale Price - $249.95 plus free shipping (continental US only). ORDER NOW! VIEW CART/CHECKOUT.    Click for Installation Instructions. Click to upgrade to any of our Designer Faucets for only $34.95 (Euro upgrade is $54.95).