GLACIER FRESH Sub-Zero 4204490 Water and Air Filter Combo
- External Testing Certification: NSF
- Product Benefits: Reduces Chlorine
- Material Type: Activated Carbon
- Number of Items: 1
Last refreshed Jun 15, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B098NKZQL5Category: Refrigerator Water Filters
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Overview
Fitting Sub-Zero's 4204490 and 4290510 water filter slots along with the 7007067 and 7042798 air cartridge, this Glacier Fresh combo pack is a twist-lock replacement for both parts at once. It's a compatible aftermarket part, not a Sub-Zero branded product.
The manufacturer's own disclosure states its NSF claims have not been independently tested or certified, which is worth knowing before comparing it to OEM Sub-Zero filters on paper.
- Fits Sub-Zero 4204490 and 4290510 water filter systems
- Replaces 7007067 / 7042798 air purification cartridge
- Coconut shell carbon block, 0.5mm micro hole size
- Recommended 6-month air filter change interval
Who it's for
Works for owners of compatible Sub-Zero built-in refrigerator and freezer models who want a lower-cost pair of replacement filters. Not relevant to other refrigerator brands, since fit is specific to these Sub-Zero water and air filter housings.
Pros and cons
- Twist-lock design installs without tools
- Noticeably cheaper than Sub-Zero OEM filters
- Combo pack covers both water and air filtration
- NSF claims not independently tested, per the manufacturer's own disclosure
- Air filter may not register on the fridge's digital reset display
Performance notes
The water filter uses a coconut shell carbon block with a 0.5mm micro hole size for odor and taste reduction, twisting into place the same way as the OEM part without tools. The air cartridge is meant to be swapped roughly every six months to keep refrigerator odors down. The manufacturer states its NSF-related claims have not been independently tested or certified under that model number.
Specifications
| Brand | Glacier Fresh |
|---|---|
| Construction & materials | |
| Material Type | Activated Carbon |
| Included components | |
| Unit Count | 1 |
| Included Components | Water Filter |
| Other details | |
| External Testing Certification | NSF |
| Product Benefits | Reduces Chlorine |
| Number of Items | 1 |
| Item Type Name | GFZero+GF26 |
Frequently asked questions
Which Sub-Zero models does this filter fit?
It's listed as compatible with BI-30U, BI-30UG, BI-36F, BI-36U, BI-36UG, BI-42S, BI-42SD, BI-48S, BI-48SD, and PRO 48 including the glass door version.
How often should the air filter be changed?
Roughly every six months to minimize refrigerator odors, per the product instructions.
Will my fridge's filter-reset light recognize this air cartridge?
Not always. One reviewer reports the digital display kept flagging the air filter as due for replacement even after installing a new one, while the water filter reset manually without issue.