Replacement Water Filter Cartridges
We are pleased to stock a wide range of sediment, activated carbon (granular and carbon block), KDF, iron reduction, and specialty filter cartridges to meet most residential and commercial water filtration needs. We sell only filters made by reputable manufacturers who have been in the business for a long time (the vast majority of which are made in the USA). We know that choosing a water filter can sometimes be a daunting task since there are so many options. If you would like some assistance in choosing a filter or filters to meet your specific needs, feel free to contact us toll free at 1-866-376-2690 to speak with one of our representatives.
For your convenience, all of our replacement water filters are available on an individual basis, as part of annual filter packages (designed specifically for our point-of-use and whole house system packages), and by the case. Our case lot prices offer considerable savings. We also have a price guarantee. If you find a better price for the same item anywhere on the Internet, give us a call and we'll beat it!
Don't settle for anything less than the best replacement filter for your home.
Our replacement filters also fit most competitor's models. If you are in doubt, please measure the length and diameter of your existing filter and give us a call toll free at 1-866-376-2690.
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Save 20% or more when you buy Pentek, US Filter, Culligan, Ametek, Pentair, American Plumber, and Liquatec replacement water filters by the case! FREE SHIPPING on all cases of filters!
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Sediment Filters
| Item |
Name & Description |
Price |
SDF-25-1005
Manufacturer:
 |
Liquatec 5 Micron Spun Poly Sediment Filter
This filter is very similar in composition, performance, and function as the Pentek P5. It is manufactured from pure polypropylene for excellent resistance to chemicals and bacteria, and good dirt-holding capacity. The expected pressure drop is only 0.4 psi at 5 GPM.
Applications:
The SDF-25-1005 is an ideal pre-filter most point-of-use drinking water systems, including may reverse-osmosis systems. It is the standard original-equipment pre-filter in our ClearChoice 4-Stage reverse osmosis system as it offers excellent value for your dollar. It can also be used for whole house applications where high flow rates are not required.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
Spun
Polypropylene |
2 3/8 x 9 3/4
inches |
5 GPM |
40-145F |
ANSI/NSF 42 |
|
|
Status:
IN STOCK
US$2.95
each
+ SHIPPING
click for prices
US$99.00
case of 40
free shipping on case of 40! |
SDF-25-2005
Manufacturer:
|
Liquatec 5 Micron Spun Poly Sediment Filter (20 inch)
This filter is identical to the Liquatec SDF-25-1005 described above, however, it is a 20 inch filter as opposed to 10 inches. Accordingly, it is designed for higher-flow applications. It is manufactured from pure polypropylene for excellent resistance to chemicals and bacteria, and good dirt-holding capacity. The expected pressure drop is only 0.4 psi at approximately 8 GPM.
Applications:
The SDF-25-2005 is well suited for most general whole house sediment filtration applications (20 inch housing required).
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
Spun
Polypropylene |
2 3/8 x 20
inches |
8 GPM |
40-145F |
ANSI/NSF 42 |
|
|
Status:
IN STOCK
US$4.95
each
+ SHIPPING
click for prices
US$99.00
case of 20
free shipping on case of 20 |
#26091
Manufacturer:
 |
Puretec 5 Micron String-Wound Sediment Filter
A basic sediment pre-filter with good dirt-holding capacity - economical and durable. Polypropylene resists bacteria and chemical contaminants.
Applications:
This filter is a popular pre-filter for most point-of-use drinking water systems and point-of-use reverse osmosis systems. It is the original equipment pre-filter for Puretec and USF Water Group generic RO units. It can also be used for whole house applications where high flow rates are not required.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
String-Wound
Polypropylene |
2 3/8 x 9 3/4
inches |
7 GPM |
40-165F |
n/a |
|
|
Status:
NO LONGER AVAILABLE
Alternative Filter:
Liquatec
SDF-25-1005
(see above) |
#41400008
Manufacturer:
 |
Hydrotech RO Sediment Filter
A string wound polypropylene sediment filter designed specifically for the Hydrotech 4-Stage reverse osmosis systems
Applications:
Sediment pre-filter (stage 1) for all 4-stage Hydrotech reverse osmosis systems.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
Spring Wound
Polypropylene |
1 7/8 x 10 1/4
inches |
2 GPM |
40-100F |
n/a |
|
|
Status:
IN STOCK
US$9.95
each
+ SHIPPING
click for prices
US$57.95
case of 6
free shipping on case of 6 |
SDF-45-1010
Manufacturer:
|
Liquatec Multi-Gradient Whole House Sediment Filter (10 micron)
The workhorse of our whole house sediment filters. This is a true multi-depth sediment filter featuring progressively tighter spun polypropylene to create 4 levels of sediment filtration in one filter. The outer layer filters down to 75 microns. The inner layers, filter to 50, 25, and finally 10, microns respectively. The multi-gradient design allows use of the whole filter depth, adding more dirt-holding capacity, maximizing water pressure, and increasing flow rates. Excellent chemical and bacteria resistance. Extremely low pressure drop of only 1 psi at 20 gallons per minute!
Applications:
A wide range of whole house sediment filtration tasks where high flow rates are required and very low pressure drop is desired. This is the primary filter in our WH1 home sediment water filter package, and the stage 1 sediment filter in our WH2, WH3, WH4, and WH-KDF packages.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
Spun
Polypropylene |
4 1/2 x 10
inches |
20 GPM |
40-145F |
ANSI/NSF 42 |
|
|
Status:
IN STOCK
US$9.95
each
+ SHIPPING
click for prices
US$143.90
case of 12
free shipping on case of 12! |
CP5-BB
Manufacturer:
 |
Pleated 5 Micron Cellulose / Polyester Sediment Filter
Features a special formulation of resin-impregnated cellulose and polyester fibers to provide better wet strength than regular pleated cellulose fibers. Pleated design ensures excellent dirt holding capacity and high flow capacity while maintaining an extremely low pressure drop (less than 1 psi at 20 gallons per minute).
Applications:
A wide range of general whole house sediment filtration tasks where high flow rates are required and very low pressure drop is desired. This filter is NOT recommended for non-treated water sources (well water or lake water, etc.) - the DGD-5005 dual gradient filter is a better choice for untreated water supplies - see below. The CP5 is the primary filter in our WH1A+ home sediment water filter package.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
Cellulose /
Polyester |
4 5/8 x 9 3/4
inches |
20 GPM |
Max. 125F |
n/a |
|
|
Status:
NO LONGER AVAILABLE
Alternative Filter:
Pentek
DGD-5005
(see below) |
DGD-5005
Manufacturer:
|
Dual Gradient 5 Micron Sediment Filter
This filter features 2 separate gradient densities to created a dual stage filter with 3 times the dirt holding capacity of similarly sized sediment filters. The outer layer of the filter is rated at 50 microns whereas the inner layer filters down to a level of 5 microns. Made from 100% pure polypropylene, this filter is very resistent to bacteria and chemcials, making it a perfect choice for use on untreated water supplies (wells, lakes, etc.). Initial pressure drop of less than 1 psi at 10 GPM.
Applications:
A wide range of whole house sediment filtration tasks where high flow rates are required, and where very low pressure drop and high dirt holding capcity is desired. This filter is typically used a a 5 micron sediment pre-filter with the Trojan UVMax whole house UV sterilizer series. It is also suitable for commercial applications. This is the primary filter in our WH1B+ sediment water filter package.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
| Polypropylene |
4 1/2 x 9 3/4
inches |
10 GPM |
Max. 145F |
n/a |
|
|
Status:
IN STOCK
US$14.95
each
+ SHIPPING
click for prices
US$114.32
case of 8
free shipping on case of 8 |
Activated Carbon Filters
| Item |
Name & Description |
Price |
CEP-10E
Manufacturer:
|
Pentek 5 Micron Coconut Carbon Block
Features an acid-washed coconut-carbon formulation that minimizes the pH rise and produces better tasting water. A thin-wall, 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. Offers far greater chlorine reduction than competitive 10 micron carbon block filters. Greater than 95% chlorine reduction for a service life of 5000 gallons at a flow rate of 1 gallon per minute.
Applications:
Primarily used for reduction of chlorine, bad tastes, odors, and some volatile organic compounds. The CEP-10E is an ideal filter for most point-of-use drinking water systems, including use as a pre or post filter in reverse-osmosis systems (incl. ClearChoice).
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
Activated Coconut
Carbon Block |
2 7/8 x 9 3/4
inches |
1 GPM |
40-125F |
ANSI/NSF 42 |
|
|
Status:
IN STOCK
US$8.95
each
+ SHIPPING
click for prices
US$89.88
case of 12free shipping on case of 12 |
CB-250-975-10
Manufacturer:
|
Liquatec 10 Micron Coconut Carbon Block
An excellent all-round point-of-use carbon filter with excellent chlorine, bad, taste,a nd odor reduction. Greater than 90% chlorine reduction for a service life of greater than 6,000 gallons at a flow rate of 1.5 gallon per minute.
Applications:
Primarily used for reduction of chlorine, bad tastes, odors, and some volatile organic compounds (pesticides) - ideal for residential, food service, commercial, and industrial applications. This filter is commonly used in single stage and multi-stage point-of-use drinking water systems, including use as a pre or post filter in reverse-osmosis systems. It is standard original equipment in our ClearChoice reverse osmosis systems (stage 2 carbon pre-filter).
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
Activated
Carbon Block |
2 7/8 x 9 3/4
inches |
1.5 GPM |
40-180F |
ANSI/NSF 42 |
|
|
Status:
IN STOCK
US$7.95
each
+ SHIPPING
click for prices
US$135.00
case of 20free shipping on case of 20 |
CBC-10
Manufacturer:
|
0.5 Micron Coconut Carbon Block
This filter features extremely high chlorine reduction capacity (greater than 90% reduction for 20,000 gallons at flow rate of 1 GPM). It is also very effective at removing unwanted tastes, odors, certain volatile organic compounds (max. water temp of 85F recommended when used to remove VOC's and pesticides), as well as 99.9% of cryptospridium and giardia cysts.
Applications:
Primarily used for reduction of chlorine, bad tastes, odors, volatile organic compounds (pesticides), cryptosporidium, and giardia cysts - ideal for residential, food service, commercial, and industrial applications. This filter is commonly used in single stage and multi-stage point-of-use drinking water systems, including use as a pre or post filter in reverse-osmosis systems (incl. ClearChoice).
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
Activated
Carbon Block |
2 7/8 x 9 3/4
inches |
1 GPM |
40-180F |
ANSI/NSF 42 |
|
|
Status:
IN STOCK
US$12.95
each
+ SHIPPING
click for prices
US$143.88
case of 12free shipping on case of 12 |
CC-10
Manufacturer:
|
Pentek Granular Activated Carbon (GAC) Filter
Good choice for general drinking water filtration for taste, odor, and chlorine reduction. Features coconut shell granulated activated carbon for better VOC reduction than standard GAC cartridges. The construction of the filter allows water to enter at one end and pass through the entire carbon bed before exiting the cartridge. An internal expansion pad minimizes channeling and bypass. 20 micron post-filter. Chlorine reduction of greater than 90% over life of 7,500 gallons.
Applications:
Primarily used as a carbon pre-filter in reverse osmosis systems and for other point-of-use countertop and under sink water filter systems.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
| coconut granular activated carbon (GAC) |
2 7/8 x 9 3/4
inches |
1 GPM |
40-125F |
ANSI/NSF 42 |
|
|
Status:
IN STOCK
US$10.95
each
+ SHIPPING
click for prices
US$119.88
case of 12
free shipping on case of 12 |
#26081
Manufacturer:
|
Puretec Granular Activated Carbon (GAC) Filter
A economical general-purpose taste, odor, and chlorine reduction cartridge containing granular activated carbon.
Applications:
Primarily used as a carbon pre-filter and post-filter in Puretec and USF WaterGroup generic reverse osmosis systems, however, it can be used in most point-of-use water filters and RO systems.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
| carbon (GAC) |
2 7/8 x 9 3/4
inches |
1 GPM |
na |
n/a |
|
|
Status:
NO LONGER AVAILABLE
Alternative Filter:
Pentek
CC-10
(see above) |
#41400009
Manufacturer:
|
Hydrotech RO Carbon Pre/Post Filter
A carbon block filter designed specifically for Hydrotech reverse osmosis systems.
Applications:
Primarily used as a carbon pre-filter and post filter (stage 2 and stage 4) in Hydrotech 4-Stage reverse osmosis systems as well as the carbon post filter in the Hydrotech 3-Stage reverse osmosis system.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
activated
carbon block |
1 7/8 x 10 1/4
inches |
1 GPM |
na |
n/a |
|
|
Status:
IN STOCK
US$19.95
each
+ SHIPPING
click for prices
US$99.95
case of 6
free shipping on case of 6 |
#41400076
Manufacturer:
|
Hydrotech RO Combination Sediment/Carbon Pre Filter
A special combination sediment and carbon block filter designed specifically for the 3-Stage Hydrotech reverse osmosis system.
Applications:
Serves as the sediment and carbon pre-filter for the Hydrotech 3-Stage reverse osmosis system.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
sediment /
carbon block |
1 7/8 x 10 1/4
inches |
1 GPM |
na |
n/a |
|
|
Status:
IN STOCK
US$19.95
each
+ SHIPPING
click for prices
US$99.95
case of 6
free shipping on case of 6 |
#RO-POST-KF
Manufacturer:
KEMFLO |
Kemflo In-Line Carbon Filter / RO Post Filter
Sealed in-line filter containing granular activated carbon for chlorine removal and use as a final polishing filter in many reverse osmosis systems including the ClearChoice 4-Stage RO System (stage 4) and many other brands.
Applications:
Reverse osmosis system post filter or inline filter for fridge icemaker etc. (fittings not included - they will already be on your reverse osmosis system). If you want to use as a ice-maker inline water filter, please call us for correct fittings. Maximum operating pressure is 125 psi.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
granular
activated carbon |
10 5/8 x 2
inches |
0.75 GPM |
max. 100F |
ANSI/NSF 42 |
|
|
Status:
SOLD OUT
SEE RO-POST BELOW
US$12.95
each
+ SHIPPING
US$49.95
case of 4
free shipping on case of 4 |
#RO-POST
Manufacturer:
Generic |
Generic In-Line Carbon Filter / RO Post Filter
Economical sealed in-line filter containing granular activated carbon for chlorine removal and use as a final polishing filter in most reverse osmosis systems including the ClearChoice 4-Stage RO System (stage 4) and many other brands. Also popular for use as inline refrigerator filter to remove chlorine and other contaminants that cause bad taste and odor. Popular substitute / replacement for Kemflo RO post filters.
Applications:
Reverse osmosis system post filter or inline filter for fridge icemaker etc. (fittings not included - they will already be on your reverse osmosis system). Maximum recommended operating pressure is 125 psi.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
granular
activated carbon |
10 5/8 x 2
inches |
0.75 GPM |
max. 100F |
n/a |
|
|
Status:
IN STOCK
US$10.95
each
+ SHIPPING
click for prices
US$43.95
case of 4
free shipping on case of 4 |
#EP-BB
Manufacturer:
|
Premium 5 Micron Carbon Block (Whole House) Filter
A versatile whole house carbon filter with a nominal 5 micron rating and featuring high dirt-holding capacity, greater chlorine removal than competitive 10 micron carbon block filters, and low pressure drop of only 1.6 psi at 2 GPM. Chlorine reduction capacity of more than 22,000 gallons with greater than 90% reduction at a flow rate of 2 GPM. A high porosity design prevents the cartridge from plugging before its adsorption capacity is exhausted, maximizing carbon utilization.
Applications:
Ideal for whole house residential, food service, commercial and industrial applications for bad taste, odor, chlorine reduction. Also removes some volatile organic compounds. This filter is featured in our WH2 whole house carbon filter system.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
activated
carbon block |
4 5/8 x 9 3/4
inches |
4 GPM |
40-180F |
ANSI/NSF 42 |
|
|
Status:
IN STOCK
US$23.95
each
+ SHIPPING
click for prices
US$95.96
case of 4free shipping on case of 8 |
#GAC-BB
Manufacturer:
|
Premium Whole House Granular Activated Carbon (GAC) Filter
A versatile whole house granular activated carbon filter designed for bad taste, odor and chlorine reduction. Designed to maximize contact time between contaminant and carbon bed for maximum removal rates - the water must run from one end of the filter to the other through the entire carbon bed before exiting the unit. Chlorine reduction capacity of more than 12,400 gallons with greater than 90% reduction at a flow rate of 2 GPM.
Applications:
Ideal for whole house residential, food service, commercial and industrial applications for bad taste, odor, and/or chlorine reduction. Also removes some volatile organic compounds. This filter is featured in our WH3 whole house carbon filter system.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
granular
activated carbon |
4 1/2 x 9 3/4
inches |
4 GPM |
40-125F |
ANSI/NSF 42 |
|
|
Status:
IN STOCK
US$22.95
each
+ SHIPPING
click for prices
US$167.92
case of 8free shipping on case of 8 |
KDF Filters
| Item |
Name & Description |
Price |
DBC-10EX2 2.5"
Manufacturer:
|
Pentek KDF/GAC Point-of-Use Filter Cartridge
This mutli-media filter utilizes both KDF-55 and granular activated carbon to substantially reduce chlorine, bad tastes and odors, as well as a wide variety of heavy metals (including copper, iron, and lead). It has a nominal filtration rating of 5 microns and should be replaced every 6-12 months under normal residential use. It features a greater volume of KDF-55 media that most competitor's filters, and a longer life than most carbon filters of similar size. This filter was previously manufactured and marketed under the Sta-Rite brand name. Max 125 psi.
Applications:
A popular filter for all-round residential water filtration. Can be used in most point-of-use water filter systems and as a pre-filter in many reverse osmsois systems.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
| KDF-55 / GAC |
3 x 9 3/4
inches |
2 GPM |
40-100F |
n/a |
|
|
Status:
IN STOCK
US$24.95
each
+ SHIPPING
click for prices
US$275.88
case of 12free shipping on case of 12 |
DBC-10EX2 4.5"
Manufacturer:
|
Pentek KDF/GAC Whole House Filter Cartridge
This mutli-media filter utilizes both KDF-55 and granular activated carbon to substantially reduce chlorine, bad tastes and odors, as well as a wide variety of heavy metals (including copper, iron, and lead). It has a nominal filtration rating of 5 microns and should be replaced every 6-12 months under normal residential use. It features a greater volume of KDF-55 media that most competitor's filters, and a longer life than most carbon filters of similar size. This filter was previously manufactured and marketed under the Sta-Rite brand name. Max 125 psi.
Applications:
A popular filter for all-round whole house residential water filtration. This filter is featured in our WHKDF whole house water filter package.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
| KDF-55 / GAC |
4 1/2 x 9 3/4
inches |
7 GPM |
40-100F |
n/a |
|
|
Status:
IN STOCK
US$49.95
each
+ SHIPPING
click for prices
US$287.94
case of 6
free shipping on case of 6 |
Specialty Filters
| Item |
Name & Description |
Price |
RFFE20-BB
Manufacturer:
|
Iron, Manganese, and Hydrogen Sulfide Reduction Water Filter
Improves the taste and smell of water by removing low to moderate levels of iron, manganese, and hydrogen sulfide (rotten egg odor). Also helps prevent orange/brown stains on plumbing fixtures, etc. For best results pre sediment filtration and post-carbon filtration are recommended. Requires a 20 inch big blue filter housing. Far more economical and requires less maintenance than competitive iron filter systems. For more information, please visit our iron water filter page.
Applications:
Primarily used for reduction of iron (up to 5ppm), manganese (up to 1.5ppm), and hydrogen sulfide (up to 1ppm) on a whole house basis as part of our WH5 system. pH level of 6.8 or greater required for best results.
| Media |
Size |
Max.
Flow |
Temp.
Range |
Certification |
| Manganese Greensand |
4 5/8 x 20
inches |
6 GPM |
40-100F |
n/a |
|
|
Status:
IN STOCK
US$119.95
each
+$19.95 shippingshipping included
US$399.95
case of 4
free shipping on case of 4 |
Reverse Osmosis Membranes
| Item |
Name & Description |
Price |
CC-50GPD
Manufacturer:
Filmtec / Dow Chem. |
Filmtec 50 Gallon Per Day Reverse Osmosis Membrane
Quality, high output Thin Film Composite (TFC) reverse osmosis membrane produced by Filmtec, a division of Dow Chemical. Higher rejection rates than cheap foreign knock-offs. Don't compromise the quality of your drinking water treatment system - get a quality Filmtec membrane for your system. Average life: 2-3 years.
Applications:
Most point of use reverse osmosis systems including ClearChoice 4-Stage RO. (Also fits all Aquasmart 5 and 6-stage RO units formerly sold by Home Water Purifiers and Filters). This membrane does NOT fit Hydrotech RO systems - see below.
|
Status:
IN STOCK
US$49.95
each
+ SHIPPING
click for prices |
33001033
Manufacturer:
|
Hydrotech 50 Gallon Per Day Reverse Osmosis Membrane
Quality, high output Thin Film Composite (TFC) reverse osmosis membrane designed specifically for Hydrotech 3-stage and 4-stage reverse osmosis systems (non-NSF-certified models). Average life: 2-3 years.
Applications:
Hydrotech 3-stage and 4-stage reverse osmosis systems.
|
Status:
IN STOCK
US$89.95
each
+ SHIPPING
click for prices |
41400007
Manufacturer:
|
Hydrotech NSF-Certified 45 Gallon Per Day Reverse Osmosis Membrane
Quality, high output Thin Film Composite (TFC) reverse osmosis membrane designed specifically for NSF-certified Hydrotech 4-stage reverse osmosis systems. Average life: 2-3 years.
Applications:
NSF-certified Hydrotech 4-stage reverse osmosis systems.
|
Status:
IN STOCK
US$99.95
each
+ SHIPPING
click for prices |
|
