Great water filter
"Easy as twist off then twist back on. Just as good as original."
Omnipure CSM5621 Carbon Block Filter - Water Factory 3M Compatible
Q&As
Omnipure CSM5621 Carbon Block Filter - Water Factory 3M Compatible
Q&As
Part Number:
CSM5621
Alt Part Number:
GI1-C
GI2-C
47-55710G2
47-9298G2
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Carbon block replacement filter reduces chlorine taste odor and particulates for Water Factory compatible systems.
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IN STOCK
NSF Certified
Description
The Omnipure CSM5621 is a replacement 5 Micron Carbon Block Filter designed to be compatible with 3M manufactured SQC filters for Water Factory/CUNO (now 3M) and for older Ionics Reverse Osmosis systems. The CSM5621 carbon block filter improves taste and odor, reduces chlorine in your water, and reduces sediment particles up to 5 microns. The CSM5621 is a replacement for the 47-9298G2. In 3 stage systems its often used as a post filter and in 4 stage systems its often used as a prefilter.
Specs
- Micron Rating: 5 microns
- Dimensions: 13.5" X 2.5"
- Replace every 6-12 months
Features
Overall rating: 4.5 / 5 from 6 reviews.
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Reviews
Great water filter
"Easy as twist off then twist back on. Just as good as original."
Great Products and service
"I have been dealing with ESP Water for more than 6 years now and always incredible friendly service. Quality products supporting my RO System. Thanks and keep up the great support."
Easy install
"I ordered all 5 replacement filters for my RO system. They came quickly and were easy to install"
installation
"not used, too difficult to install"
This is my second time purchasing
"I love ESP. They send reminders every year when kids time to change your filters. The site is easy to use and buy filters. The water tastes great and the shipping is almost overnight."
Carbon block post filter
"Prompt delivery and works as expected, no problem."
Q&A
Q:
What does the Omnipure CSM5621 reduce?
A:
Its activated carbon media reduces chlorine taste and odor; the 10-micron rating also targets suspended particles at the stated size. It is an Omnipure compatible cartridge for the catalog-listed Water Factory/3M-style systems, not a 3M-manufactured filter.
Q:
What housings or systems accept the Omnipure CSM5621?
A:
The catalog lists these compatible parts or systems: CSM5621, 3MRO301, 3MRO401, 3MRO501, SQC 3, SQC 4. Confirm the exact model number on your equipment before ordering Omnipure CSM5621. The nominal cartridge size is SQC quick-change format, so confirm both diameter and length.
Q:
How is this filter different from a sediment-only cartridge?
A:
Carbon treats chlorine taste and odor while also trapping particles. A sediment-only cartridge targets dirt, rust, and silt but does not provide the same carbon treatment.
Q:
How often should the Omnipure CSM5621 be replaced?
A:
A typical interval is 6 to 12 months, but water use, chlorine loading, sediment, and pressure drop determine actual life. Replace it sooner if flow declines or taste and odor return.
Q:
Does the Omnipure CSM5621 need to be flushed?
A:
Yes. Flush a new carbon cartridge according to the equipment instructions until loose carbon fines are cleared, then check the housing and connections for leaks.
Q:
Can I substitute any SQC quick-change format carbon filter?
A:
No. Match the part number, micron rating, carbon type, treatment claims, and required flow. Same-size cartridges can have different media, capacities, and pressure drop.
