

We offer the best low cost whole house water filters, chlorine shower filters, whole house bacteria filters, countertop and under-counter filtration systems using the patented KDF® media. 100 percent customer support 7 days a week--since 1998.
Pick the parts and we'll make it!
Below you'll find all the necessary parts to custom design your own under counter water filter. Select a housing configuration using the ORDER NOW buttons (single, double or triple) and then select the filters for your system from those listed (wrench is optional--housings are hand tightened). Fill out the order form, and we'll build it to your specifications. Shipping is free over $99. Includes water filter installation instructions. Create your own custom filter below. Some suggested configurations include our Doulton ceramic bacteria cartridge followed by our KDF/GAC filter for removing chlorine and heavy metals. Another popular dual filter is used to remove fluoride with our activated aluminum cartridge (1st stage) and our KDF/GAC cartridge in the second housing. One more popular dual stage filter uses our KDF/GAC cartridge followed by a 0.5 micron carbon block for removal chlorine and chloramines. Select a triple configuration and you can add a third stage.

faucet, faucet connecter valve and wrench not included
1/4" Quick Connect
Single Under-counter Filter (includes housing with 1/4" quick connect fittings and bracket--tubing not included--order below)--$49.95. ORDER NOW! VIEW CART/CHECKOUT. add your cartridge below.
Double Under-counter Filter (includes housings with 1/4" quick connect fittings and double bracket--tubing not included--order below)--$94.95. ORDER NOW! VIEW CART/CHECKOUT. add your cartridges below.
Triple Under-counter Filter (includes housings with 1/4" quick connect fittings and triple bracket--tubing not included--order below)--$129.95. ORDER NOW! VIEW CART/CHECKOUT. add your cartridges below.
Inline Filters with 3/8" Quick Connect (faucet connector valve not required for inline use)
Single Under-counter Filter (includes housing with 3/8" quick connect fittings and bracket--tubing not included--order below)--$55.95. ORDER NOW! VIEW CART/CHECKOUT. add your cartridge below.
Double Under-counter Filter (includes housings with 3/8" quick connect fittings and double bracket--tubing not included--order below)--$99.95. ORDER NOW! VIEW CART/CHECKOUT. add your cartridges below.
Triple Under-counter Filter (includes housings with 3/8" quick connect fittings and triple bracket--tubing not included--order below)--$132.95. ORDER NOW! VIEW CART/CHECKOUT. add your cartridges below.
![]()
Pick Your Parts
Housing Wrench--$4.95. ORDER NOW! VIEW CART/CHECKOUT
Tubing 1/4" and 3/8" Priced Per Foot
1/4" Blue PolyethyleneTubing for under-counter systems -- $0.75. ORDER NOW! VIEW CART/CHECKOUT
3/8" Blue PolyethyleneTubing for under-counter systems -- $1.50. ORDER NOW! VIEW CART/CHECKOUT
Faucet Connector Valves for 1/4" Housings

Faucet Connector Valve (EZ-Faucet Adapter Kit), sold separately. Used to connect water line to your water filter without using a saddle valve (pipe piercing). Inline valve connects between the cold water side of your faucet and the cold water shut-off valve. Includes a 1/4" quick connect fitting and shut-off valve (faucet valve may vary). Allows best flow rate-- $19.95. ORDER NOW! VIEW CART/CHECKOUT

Saddle Valve. Self piercing faucet valve with 1/4" compression fitting to connect the water supply to your filter -- $6.95 (not recommended for double or triple filter systems--use the above Faucet Valve Connector for best flow). ORDER NOW! VIEW CART/CHECKOUT
KDF/GAC Filter--$39.95--new low price--3 Year Warranty! ORDER NOW! VIEW CART/CHECKOUT

Filter KG-CF. KDF/GAC (Granulated Activated Carbon) filter cartridge for Models CT, CTD-C, UC, UCD, UCT-S and NaK-UC. Will also fit housings designed for standard 9 3/4" cartridges. Also removes lead that may be present in old pipes. Includes 1 micron sediment/cyst pad, 1 lb of KDF media and the rest GAC (coconut shell Granulated Activated Carbon). Rated to treat 12,000 gallons. [NSF-53 Standard Test Results] 3 year prorated warranty. Includes chlorine test strips to verify when it's time to replace cartridge. Suggested Retail - $59.00, Sale Price - $39.95. ORDER NOW! VIEW CART/CHECKOUT.
Doulton Silver Sterasyl Ceramic Filter--$44.95. ORDER NOW! VIEW CART/CHECKOUT.
Filter CER-S. Doulton Silver Sterasyl Ceramic Microfilter cartridge for CTD-C and UCD-C. Can also be used in any industry-standard housing designed for 9 3/4" cartridges. Effectively removes greater than 99.99% of harmful bacteria, cysts (Cryptosporidium, Giardia), and sediment down to an absolute 0.9 micron. Removes 99.9% of particles down to 0.5 microns. The cartridge can be cleaned up to 40 times (about once per month). 3 to 5 year life. Click for Performance Data. 3 year prorated warranty. Suggested Retail - $79.00, Sale Price - $44.95. ORDER NOW! VIEW CART/CHECKOUT.
Filter CER-I. Doulton Imperial Silver Sterasyl Ceramic Microfilter cartridge for our Inline Under-counter filters. Same same specifications as above CER-S but larger, measuring 2.75" x 9.75". Click for Performance Data. 3 year prorated warranty. Suggested Retail - $99.00, Sale Price - $79.95. ORDER NOW! VIEW CART/CHECKOUT.
Filter UltraCarb. Doulton UltraCarb uses the same ceramic shell as the Silver Sterasyl above (0.9 micron absolute) and adds a 1 micron carbon block core for chlorine, chemical and lead reduction (see specs below). Suggested Retail - $99.00 - Special Pricing - $74.95. ORDER NOW! VIEW CART/CHECKOUT.
UltraCarb reduces:
| 98.3 % Lead | |
| 99.99 % Bacteria, Cysts and Sediment | |
| 85 % Insecticides and Pesticides | |
| 50 % Trihalomehane and Penols | |
| 95 % Polyaromatic Hydrocarbons |
SEDIMENT/CYST FILTER--$9.95. ORDER NOW! VIEW CART/CHECKOUT

Filter SFX-1. This 1 micron sediment pre-filter is used in the UCD and UCT-S model filter systems. It provides ultra-clean, cyst-free (Cryptosporidium, Giardia) water. (1 micron is 1/25,000 of an inch, a human hair is about 100 microns in diameter). Deep pleat design has up to 10 times the life of other type filters. Will also fit housings designed for standard 9 3/4" cartridges. Suggested Retail - $17.00, Sale Price - $9.95. ORDER NOW! VIEW CART/CHECKOUT.
CARBON BLOCK FILTER -- $24.95 now $19.95

Filter CB-0.5. Coconut Shell Extruded Carbon Block Filter. This VOC carbon block filter features 0.5 micron filtration, high chlorine removal capabilities (20,000 gallons), high chemical and VOC reduction (1,200 gallons). Alone reduces chloramines, Giardia, Toxoplasma, Cryptosporidium, sediment and fine silt. Reduces chloramines when combined with our KDF/GAC cartridge. Suggested Retail - $39.00, Sale Price - $24.95. Sale $19.95. ORDER NOW! VIEW CART/CHECKOUT.
Filter CB-5. Coconut Shell Extruded Carbon Block Filter. This VOC carbon block filter features 5 micron filtration, high chlorine removal capabilities, high chemical and VOC reduction. Alone reduces chloramines. Suggested Retail - $29.00, Sale Price - $14.95. ORDER NOW! VIEW CART/CHECKOUT.
Chloramines Taste and Odor Cartridge using Specialized Carbon GAC

Filter CH. High chloramines taste and odor and chlorine reduction. This is a CGAC specialized carbon GAC 10" cartridge will reduce chloramines taste and odor in municipal water, rated at 3,500 gallons at 0.5 gallon per minute. As far as I know, this is the only filter cartridge specifically designed to reduce chloramines without the use of other filters. Performance test show it reduces chloramines levels from 3.0 ppm down to less than 0.5 ppm. It's also rated at 30,000 gallons for chlorine reduction at 1.0 gallon per minute. Suggested Retail - $49.00, Sale Price - $34.95. ORDER NOW! VIEW CART/CHECKOUT.

Filter FL. FLUORIDE REMOVAL CARTRIDGE. Contains fine-mesh pre-conditioned Activated Alumina to reduce fluorides below 0.5 ppm. Its capacity is up to 11,000 ppm with effluent levels below 0.2 ppm from 10 ppm feed (approximately 2750 gallons at 1 ppm fluoride). Note: high pH and high bicarbonate levels reduce the capacity - above 100 ppm bicarbonate, reduce by 50%; above 200 ppm, reduce by 75%. Also effectively removes arsenic. Average life is one year for municipal water systems. Suggested Retail - $69.00, Sale Price - $44.95. ORDER NOW! VIEW CART/CHECKOUT.

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, 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.
Filter N. NITRATE REMOVAL CARTRIDGE. Contains a special nitrate-selective resin. Nitrate reduction is 90% to 95% and breakthrough is not affected by sulfate levels. The capacity is 5000 ppm of nitrates as CaCO3. To determine capacity, first calculate the ppm of nitrates as CaCO3, then divide that number into 5000 to get the gallons. This cartridge can be regenerated using sodium chloride brine. Suggested Retail - $69.00, Sale Price - $44.95. ORDER NOW! VIEW CART/CHECKOUT.
Filter NAK. SODIUM REMOVAL CARTRIDGE. Contains a high-efficiency ion-exchange resin regenerated in the potassium form. It will remove virtually all sodium (and hardness) and exchange it for potassium. Can be regenerated using potassium chloride brine (about once a month). Suggested Retail - $69.00, Sale Price - $44.95. ORDER NOW! VIEW CART/CHECKOUT.
Chlorine Test Strips
Test your KDF/GAC cartridge performance with our inexpensive test strips:
PurTest Chlorine Test Strips in foil packets, 2 strips per packet -- $1.25 ORDER NOW! VIEW CART/CHECKOUT
Standard Faucet
Standard faucet--$29.95 with build your own filter. Long reach lead-free with compression fittings. ORDER NOW! VIEW CART/CHECKOUT

Faucet Stem Quick Connect Fitting, 7/16" x 1/4" for under-counter systems -- use instead of compression fittings - $7.95. ORDER NOW! VIEW CART/CHECKOUT
Designer Faucets--Lead Free--includes compression fittings
Designer Faucets--Lead Free: Sold Separately -- from $59.95 (*not for use with air gap type RO filters).
|
DF Chrome/Brass ORDER NOW!--$59.95 |
DF All Chrome ORDER NOW!--$59.95 |
DF Brushed Satin Nickel Euro-$79.95 ORDER NOW! |
|
|
DF Brushed Nickel (brushed stainless look) ORDER NOW!--$59.95 |
DF All White ORDER NOW!--$59.95 |
DF All Almond ORDER NOW!--$59.95 |
DF All Chrome Euro--$79.95 ORDER NOW! |
|
DF All Black ORDER NOW!--$59.95 |
DF All Polished Brass ORDER NOW!--$59.95 |
VIEW CART/CHECKOUT |
![]()
