Compatible replacement

Replacement filter cartridge compatible with CTOS-20

Looking for a replacement filter cartridge for CTOS-20? The CFS products below are compatible with CTOS-20, size 20 x 2.5 in (508.0 x 63.5 mm). Our product listings name CTOS-20 as a compatible number.

CFS compatible replacement, not an OEM part.

Fit details

Compatible with	CTOS-20
Size	20 x 2.5 in (508.0 x 63.5 mm)
Material	Carbon block
How we know	Cross-referenced: our product is listed as compatible with this number

Our options

CFS Carbon Block Water Filter – 4 Pack – 5 Micron – 20" x 2.5" – Fits 155597-43, C1-20

Carbon Block520 x 2.5

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CFS Carbon Block Water Filter – 4 Pack – 5 Micron – 20" x 2.5" – Fits 155597-43, C1-20

$64.99View details

4-pack replacement water filter cartridges, 20 inches, compatible with OptiPure CTOS-20 models

Sediment20 x 2.5

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CFS – 4 Pack Water Filter Cartridges Compatible with OptiPure CTOS-20 Models – Whole House Replacement Filter Cartridge – 20" Filter Cartridge

$59.99View details

CFS CTO Carbon Block Water Filters for C1-20, 155597-43, 20 x 2.5, 4 Pack

$64.99View details

Also fits

The same products also fit:

Not sure?Send us the model number or a photo of your old part and we will confirm the fit before you order.Contact us Search another number in the Filter Finder