⭐ Key Features

•✅ABOUT PRODUCT: It is a package of Replacement filter cartridges compatible with EPW4F water filter cartridges. It has a larger surface area and has a longer filter life. This water filter cartridge removes more pollutants by providing "depth" filtering.

•CARBON BLOCK, NOT GRANULAR – The carbon in this cartridge is compressed into a solid block rather than loose granules. Water is forced through the block instead of finding channels around loose media, so contact time is more consistent from the first gallon to the last. It reduces chlorine and the tastes and smells that ride with it.

•BUILT FOR A BIG BLUE HOUSING – This is the 10 by 4.5 inch large capacity size, not the slim line 10 by 2.5 inch cartridge. The larger diameter holds more carbon and presents more surface area to the water, which is what lets a whole house unit run at household flow rates without choking down the pressure at the taps.

•FITS EPW4F AND OTHER 10 x 4.5 HOUSINGS – Sized for Eco Pure EPW4F systems and the standard big blue style housings that take a 10 by 4.5 inch cartridge. Measure your old cartridge before ordering: the 10 by 2.5 inch slim line size will not seal correctly in a big blue sump, and the two are easy to confuse by eye.

•MATCH THE FILTER TO YOUR WATER – Service intervals depend on what is in your supply and how much water the house uses. Heavy chlorine or high volume typically means changing sooner; light use typically stretches the interval. Falling pressure at the taps is the signal to change it, not the calendar.

🛠️ Specifications

• Brand : CFS
• Size : 1 Pack, 10 x 4.5
• Material : Carbon,Coconut Shell,Activated Carbon,Polypropylene
• Unit : 1 Count
• Item highlights : Carbon block cartridge for 10 x 4.5 large capacity whole house housings. Reduces chlorine taste and odor.
• Number of items : 1
• Product benefit : Removes a wide range of contaminants from your water, including sediment, chlorine, and various chemicals.
• Type : POTABLE_WATER_FILTER
• Item dimensions : H: 10.0 / L: 4.5 / W: 4.5 (Weight: 0.99)
• Package dimensions : H: 4.7 / L: 10.6 / W: 4.8 (Weight: 3.37)

📋 Product Description

This is a carbon block cartridge for a whole house filter housing in the 10 by 4.5 inch large capacity size — the shape usually called big blue. The carbon is compressed into a solid block rather than packed in as loose granules. That matters more than it sounds: water pushed through a solid block cannot find channels around the media the way it can through a loose granular bed, so contact stays even from the first gallon through to the last. What the block does is reduce chlorine, along with the tastes and smells that come with it, on the water feeding the whole house rather than a single tap. The large capacity size is the point of a whole house unit. A 10 by 4.5 inch cartridge holds substantially more carbon than the 10 by 2.5 inch slim line, and presents far more surface area, which is what lets it run at household flow rates without pulling pressure down at the fixtures. Check the size before ordering. Slim line and big blue cartridges look similar in a photograph and are not interchangeable — a 2.5 inch cartridge will not seal properly in a 4.5 inch sump. Measuring the old one takes a moment and saves a return. How long it lasts depends on your water and your household. Heavier chlorine or higher volume means changing sooner; lighter use stretches it out. Watch the pressure at your taps rather than the calendar. Complete Filtration Services has built and supplied replacement filtration since 2006.