Skip to content

Carbon CTO

Clean drinking water starts with the right filter. Our Carbon CTO replacement filters are designed to improve taste, reduce odors, and target common contaminants found in municipal and well water. These carbon block cartridges use compressed activated carbon to trap chlorine, sediment, and other unwanted particles. Many models also support cyst and lead reduction when paired with compatible systems. With multiple sizes and micron ratings available, you can match the right filter to your existing housing or reverse osmosis setup.

About Our CTO Carbon Block Filtration Cartridges

Carbon block filtration products are known for their dense structure and consistent performance. Unlike loose granular carbon, a solid carbon block forces water through tightly packed media for better contact time. This design helps reduce chlorine taste and odor while supporting cleaner, clearer water at every tap. Our selection includes coconut shell carbon options, standard 2.5 x 10 cartridges, whole house sizes, and compatible replacements for popular systems. You can also choose multi-pack options for convenient scheduled changes throughout the year.

Why Choose iFilters for Carbon CTO Products?

At iFilters, we focus on offering dependable replacement filters that fit a wide range of residential and light commercial systems. Our inventory includes trusted brands and compatible alternatives, so you can shop with confidence. Detailed product listings make it easy to confirm dimensions, micron ratings, and compatibility before you buy. Many Carbon CTO options are available with Auto Ship, helping you stay on schedule without last-minute orders. We also keep popular items in stock, so your water system stays running without unnecessary downtime.

Shop Carbon CTO online today!

Original price $10.99 - Original price $10.99
Original price
$10.99
$10.99 - $10.99
Current price $10.99

The Hydronix CB-25-1001 NSF Certified Carbon Block water filter is manufactured with high purity coconut shell carbon and is available in a wide ra...

View full details
Original price $10.99 - Original price $10.99
Original price
$10.99
$10.99 - $10.99
Current price $10.99
Original price $23.00 - Original price $23.00
Original price
$23.00
$23.00 - $23.00
Current price $23.00

Hydronix CB-25-2001 carbon block filters are NSF/ANSI standard 42 certified for Material and structural Safety. CB-25-2001 filters have a particle ...

View full details
Original price $23.00 - Original price $23.00
Original price
$23.00
$23.00 - $23.00
Current price $23.00
Original price $59.95 - Original price $59.95
Original price
$59.95
$59.95 - $59.95
Current price $59.95

The best alternative replacement for C7000 and C6500 Filtration Systems. Manufactured from organic Premium Coconut Shell Activated Carbon, the WC-C...

View full details
Original price $59.95 - Original price $59.95
Original price
$59.95
$59.95 - $59.95
Current price $59.95
Original price $115.95 - Original price $115.95
Original price
$115.95
$115.95 - $115.95
Current price $115.95

2 Pack WC-CR70. The best alternative replacement for C7000 and C6500 Filtration Systems. Manufactured from organic Premium Coconut Shell Activated ...

View full details
Original price $115.95 - Original price $115.95
Original price
$115.95
$115.95 - $115.95
Current price $115.95
Original price $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99

iFilters CBSM-2510 Coconut Shell CTO Carbon Block Drinking Water Filter – 2.5" x 10", 0.5 Micron High-Performance Filtration for Clean, Great-Tasti...

View full details
Original price $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99
{"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%"}}