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Filter E and 4 Carbon Filter for Germguardian AC4100 AC4150 FLT4100 FLT11CB4....
USD 12.97
Free shippingReplacement carbon pre-filter pack
GermGuardian Filter E Carbon Replacement Filters (4-Pack) FLT11CB4 replacement filter
Filter E Carbon Replacement Filters (4-Pack) FLT11CB4 fits GermGuardian AC4100, GermGuardian AC4150BL and GermGuardian AC4150P according to the cited GermGuardian source.
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Official manufacturer
Filter E Carbon Replacement Filters (4-Pack)
FLT11CB4
Check official GermGuardian availability
Non-affiliate link to the cited official product page.
Current marketplace listings
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3 part-number-matched listings
These sponsored listings contained the manufacturer part number when fetched. They may be manufacturer or third-party products. Compare package contents, total cost, delivery estimate, and seller details before ordering. We may earn a commission from qualifying purchases.
Filter E Carbon Replacement Filters (4-Pack) FLT11CB4
3 current listings for FLT11CB4
Official package reference: 4 × Carbon pre-filter elements. Source checked 2026-08-29. Marketplace package contents can differ.
Sponsored · eBay
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Filter E + 4-Pack Carbon Filters for GermGuardian FLT4100 / FLT11CB4 Replacement
USD 14.95
+ USD 5.95 shipping
Sponsored · eBay
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Filters for GermGuardian AC4100 AC4150PCA AC4150BCA Purifiers, FLT4100 FLT11CB4
USD 4.95
+ USD 5.95 shippingListing data provided by eBay and fetched . Prices, shipping, delivery estimates, and seller details can change on eBay.
Quick fit check
Filter E Carbon Replacement Filters (4-Pack) fit and replacement facts
Part numberFLT11CB4
Compatible models3
Filter roleReplacement carbon pre-filter pack
GermGuardian recommends replacing the activated carbon filter layer every 2 to 3 months depending on use. Package contains 4 carbon replacement filters.
Cited package contents
Package details below come from the linked official source; recheck it before buying.
Filter E Carbon Replacement Filters (4-Pack) FLT11CB4
- 4 × Carbon pre-filter elements Replaceable Official source checked
Compatible GermGuardian models
Follow a model link for its complete primary, optional, specialty, and alternative filter list.
| Model | Filter | Part number | Role | Source | Marketplace |
|---|---|---|---|---|---|
| GermGuardian AC4100 | Filter E Carbon Replacement Filters (4-Pack) | FLT11CB4 |
Replacement carbon pre-filter pack | Guardian Technologies GermGuardian FLT11CB4 - Filter E Carbon 4-Pack | Check prices |
| GermGuardian AC4150BL | Filter E Carbon Replacement Filters (4-Pack) | FLT11CB4 |
Replacement carbon pre-filter pack | Guardian Technologies GermGuardian FLT11CB4 - Filter E Carbon 4-Pack | Check prices |
| GermGuardian AC4150P | Filter E Carbon Replacement Filters (4-Pack) | FLT11CB4 |
Replacement carbon pre-filter pack | Guardian Technologies GermGuardian FLT11CB4 - Filter E Carbon 4-Pack | Check prices |
Buying checklist
What to check in a filter listing
Confirm that the listing names part FLT11CB4 and one of the compatible models: GermGuardian AC4100, GermGuardian AC4150BL and GermGuardian AC4150P. Similar-looking filters are not proof of fit.
Decide whether you want an OEM or aftermarket filter, then compare the included pieces, product photos, seller details, delivery estimate, and total price.
Care guidance
Replacement schedule
GermGuardian recommends replacing the activated carbon filter layer every 2 to 3 months depending on use. Package contains 4 carbon replacement filters.
Usage conditions can affect service life. Follow the cited manufacturer guidance for this part.
Optional calendar tool
Plan your next filter change
Choose a date to download a calendar reminder based on the cited replacement guidance.
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Compare compatible options
Related GermGuardian filters for these models
These filters share at least one officially cited model within the same brand, but may serve a different primary or optional role. Check each part page before buying.
Filter E
FLT4100
Frequently asked questions
How often should I replace the GermGuardian Filter E Carbon Replacement Filters (4-Pack) (FLT11CB4)?
GermGuardian recommends replacing the activated carbon filter layer every 2 to 3 months depending on use. Package contains 4 carbon replacement filters.
Which GermGuardian models use the Filter E Carbon Replacement Filters (4-Pack) FLT11CB4?
According to the official GermGuardian product page, Filter E Carbon Replacement Filters (4-Pack) (FLT11CB4) fits GermGuardian AC4100, GermGuardian AC4150BL and GermGuardian AC4150P. Verify the model label on your unit before ordering.
Do aftermarket FLT11CB4 filters work?
Marketplace listings may be from the manufacturer or a third party. Match the exact part number FLT11CB4, review the listing details, and verify the model label on your unit before buying.
Manufacturer source
Official Guardian Technologies product page identifies Filter E carbon replacement filter 4-pack, SKU FLT11CB4, as compatible with models AC4100, AC4150BL and AC4150P.
Guardian Technologies GermGuardian FLT11CB4 - Filter E Carbon 4-Pack
Source compatibility checked 2026-08-29. Recheck the listing and your purifier label before ordering.