CFS 5 Micron 10x2.5 Carbon Block Filter for EP-10 CBC-10 34370-3 Pack

• SOLID CARBON BLOCK, NOT LOOSE GRANULES - The carbon is pressed into a block, so water is pushed through the media rather than channeling around it as it can in a granular cartridge. That contact is what reduces the chlorine taste and odor that make water unpleasant to drink and cook with, and the block also captures sediment down to 5 micron on the way through.
• THREE CARTRIDGES PER PACK - At a change every three to six months, three cartridges cover about a year and a half. It sits between the two pack and the four pack on this page; the four costs slightly less per cartridge again.
• FITS THESE PART NUMBERS - Direct replacement at 5 micron for EP-10, CBC-10, PWCB10S, 32-250-125-975, 34370, WHEF-WHWC, MAXETW-975, C-MAX, 202000, 42-34373 and 155531-43. If the cartridge you are pulling out measures 10 by 2.5 in, this fits your housing.
• PUT SEDIMENT IN FRONT OF IT - Carbon works best when it is not doing particulate work as well. On a well or any supply carrying visible grit, run a sediment cartridge upstream so the carbon spends its capacity on chlorine rather than clogging.
• CARBON EXHAUSTS, IT DOES NOT CLOG - A sediment cartridge tells you it is finished by dropping your water pressure. Carbon does not; it simply stops reducing taste and odor while flow stays the same. Change on a schedule rather than waiting for a sign. Compatible replacement made by CFS, not an original manufacturer part.

CFS carbon block water filter cartridges in the standard 10 by 2.5 in slim line size, 5 micron, three per pack, a direct replacement for EP-10, CBC-10 and 34370. The carbon is pressed into a solid block rather than packed in as loose granules, and the difference matters more than it sounds. Water pushed through a granular bed finds the path of least resistance and channels around most of the carbon; a block leaves it nowhere to go, so every drop gets the contact time the media was designed for. That contact is what reduces the chlorine taste and odor that make water unpleasant to drink and cook with, and the block structure also captures sediment down to 5 micron on the way through. Three cartridges covers about a year and a half at a change every three to six months. It sits between the two pack and the four pack on this page, and the four works out slightly cheaper per cartridge again if you would rather order less often. Besides EP-10, CBC-10 and 34370 this is the same standard size as PWCB10S, 32-250-125-975, WHEF-WHWC, MAXETW-975, C-MAX, 202000, 42-34373 and 155531-43, so it fits most whole house, under sink and countertop housings that take a 10 by 2.5 in cartridge whether or not your model is named here. If you are unsure, measure the one you are pulling out. Carbon works best when it is not doing particulate work as well, so on a well or any supply carrying visible grit, run a sediment cartridge upstream and let the carbon spend its capacity on chlorine. Carbon also behaves differently from sediment media at the end of its life: a sediment cartridge tells you it is finished by dropping your water pressure, while carbon gives no such warning and simply stops reducing taste and odor with the flow unchanged. Change on a schedule rather than waiting for a sign, about every three to six months on typical municipal water. This is a compatible replacement made by CFS, not an original manufacturer part, and part numbers are used for reference only.