Skip to content

Specialty Filters

Shop specialty replacement filters for applications including sub-micron filtration, absolute-rated filtration, refillable cartridges, bonded sediment, carbon-impregnated media, and commercial or industrial filtration.

Filters

Auto Ship
iFilters KDF and GAC Well or City Water Whole House Filtration 4.5" x 10" - IFilters
iFilters KDF and GAC Well or City Water Whole House Filtration 4.5" x 10" - IFilters
iFilters

iFilters KDF and GAC Well or City Water Whole House Filtration 4.5" x 10"

KDF1-4510
in stock

$54.99 - $54.99
$54.99
$54.99 - $54.99
$54.99

KDF1-4510 4.5" x 10" Coconut GAC + 1 LB KDF cartridge. For City or Well Water Whole House or Commercial use. This filter is made from coconut shell...

View full details
$54.99 - $54.99
$54.99
$54.99 - $54.99
$54.99
Auto Ship
Hydrogen Sulfide, Iron, Heavy Metals, Scale Control Water Filter, .5 lb KDF85 2.5x10 - IFilters
Hydrogen Sulfide, Iron, Heavy Metals, Scale Control Water Filter, .5 lb KDF85 2.5x10 - IFilters
iFilters

Hydrogen Sulfide, Iron, Heavy Metals, Scale Control Water Filter, .5 lb KDF85 2.5x10

KDF85-10-0.5
in stock
$28.99 - $28.99
$28.99
$28.99 - $28.99
$28.99

KDF85-10 2.5" x 10" Coconut GAC + KDF85 standard size filter cartridge. For Well Water or City Whole House filtration as well as Commercial use. T...

View full details
$28.99 - $28.99
$28.99
$28.99 - $28.99
$28.99
Auto Ship
iFilters KDF and GAC City or Well Water Whole House Filtration 4.5" x 20" - IFilters
iFilters KDF and GAC City or Well Water Whole House Filtration 4.5" x 20" - IFilters
iFilters

iFilters KDF and GAC City or Well Water Whole House Filtration 4.5" x 20"

KDF2-4520
in stock

$109.99 - $109.99
$109.99
$109.99 - $109.99
$109.99

KDF2-4520 4.5" x 20" Coconut GAC + 2LBS KDF size cartridge. For City or Well Water Whole House or Commercial use. This filter is made from coconut ...

View full details
$109.99 - $109.99
$109.99
$109.99 - $109.99
$109.99
Auto Ship
KDF85-20B 20" Iron, Hydrogen Sulfide, Sulfur, and Scale Well Water Filter - IFilters
iFilters

KDF85-20B 20" Iron, Hydrogen Sulfide, Sulfur, and Scale Well Water Filter

KDF85-20B
in stock

$89.99 - $89.99
$89.99
$89.99 - $89.99
$89.99

KDF85-20B 4.5" x 20" Coconut GAC + KDF85 Big Blue size cartridge. For Well Water or City Whole House filtration as well as Commercial use. This fil...

View full details
$89.99 - $89.99
$89.99
$89.99 - $89.99
$89.99
Auto Ship
KDF85-10B 10" Iron, Hydrogen Sulfide, Sulfur, and Scale Well Water Filter - IFilters
iFilters

KDF85-10B 10" Iron, Hydrogen Sulfide, Sulfur, and Scale Well Water Filter

KDF85-10B
in stock
$129.99 - $129.99
$129.99
$129.99 - $129.99
$129.99

KDF85-10B 4.5" x 10" Coconut GAC + KDF85 Big Blue size cartridge. For Well Water or City Whole House filtration as well as Commercial use. This fil...

View full details
$129.99 - $129.99
$129.99
$129.99 - $129.99
$129.99
Auto Ship
Softening Resin Filter Cation Ion Exchange 4.5" x 20" Big Blue Size - IFilters
iFilters

Softening Resin Filter Cation Ion Exchange 4.5" x 20" Big Blue Size

CAT-4520
in stock

$49.99 - $49.99
$49.99
$49.99 - $49.99
$49.99

The CAT-4520 softening cation resin filter is used for the reduction of hard water using an ion exchange process. The CAT-4520 water softening filt...

View full details
$49.99 - $49.99
$49.99
$49.99 - $49.99
$49.99
Auto Ship
UDF-4520GACKDF2 4.5" x 20" Coconut GAC + 2LBS KDF - IFilters
Hydronix

UDF-4520GACKDF2 4.5" x 20" Coconut GAC + 2LBS KDF

UDF-4520GACKDF2
in stock
$99.99 - $99.99
$99.99
$99.99 - $99.99
$99.99

Hydronix Whole House UDF-4520GACKDF2 4.5" x 20" Coconut GAC + 2LBS KDF, Big Blue size cartridge. This filter is made from coconut shell GAC in comb...

View full details
$99.99 - $99.99
$99.99
$99.99 - $99.99
$99.99
Autoship Popup
{"statementLink":"","footerHtml":"","hideMobile":false,"hideTrigger":false,"disableBgProcess":false,"language":"en","position":"right","leadColor":"#146ff8","triggerColor":"#146ff8","triggerRadius":"50%","triggerPositionX":"right","triggerPositionY":"bottom","triggerIcon":"people","triggerSize":"medium","triggerOffsetX":95,"triggerOffsetY":20,"mobile":{"triggerSize":"small","triggerPositionX":"right","triggerPositionY":"bottom","triggerOffsetX":90,"triggerOffsetY":10,"triggerRadius":"50%"}}