Culligan · Refrigerator Filters
Culligan IC-100A Icemaker/Refrigerator Water Filter
Lower PFAS concern for standard refrigerator filters; carbon/resin media not known to contain PFAS, but Culligan offers no explicit disclosure.
The IC-100A uses activated carbon and ion-exchange resin, filtration media not typically associated with PFAS manufacturing or coating. However, Culligan does not publicly disclose PFAS content or mitigation practices. No third-party testing or certification addressing PFAS is publicly available for this model.
Shop Culligan on Amazon →Material
Activated carbon and ion-exchange resin filtration media
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
The IC-100A uses activated carbon granules and ion-exchange resin beads as its core filtration media. Activated carbon is inert, food-contact approved, and does not leach harmful compounds into water under normal refrigerator conditions. Ion-exchange resin similarly is chemically stable and FDA-cleared for potable water use. Neither material poses documented leaching risks to drinking water at the temperatures and contact times typical of refrigerator filtration.
The brand's record and disclosure
Culligan is a long-established water-treatment company with NSF/WQA certifications for many products, though the IC-100A itself carries no public third-party certification on record. The brand has been largely silent on PFAS testing and transparency; no independent audits or recalls related to this specific filter cartridge are documented. Culligan's general stance on emerging contaminants remains opaque compared to competitors offering explicit PFAS reduction claims.
How it compares in its category
Refrigerator filters in this segment (carbon-resin dual media) are a standard, low-risk category. The IC-100A is comparable to generic OEM equivalents and third-party brands like GE, LG, and Samsung filters in construction and material safety. Unlike some premium aftermarket filters, Culligan does not market PFAS-specific reduction, which may be either a transparency gap or simply honest labeling if the reduction claim cannot be substantiated.
If you buy it
Replace the cartridge every 6 months or after filtering 300 gallons, whichever comes first, to prevent microbial biofilm buildup in the exhausted media. Do not expose the filter to freezing temperatures before installation. Store in a cool, dry place, and do not attempt to regenerate or reuse the cartridge. Follow the refrigerator manufacturer's installation instructions to ensure proper seating and avoid bypassing the filter.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Bacterial and microbial growth in exhausted filter media
Activated carbon and resin provide a porous substrate for bacterial colonization if the filter is not replaced on schedule or if water stagnates. This is a maintenance issue rather than a material defect; proper replacement intervals eliminate the risk.
Carbon fines or resin particle shedding into water
Well-manufactured activated carbon cartridges are flushed and compacted to minimize particle release. No recalls or complaints specific to the IC-100A or similar Culligan filters for fines contamination are on record.
Housing or cartridge shell leachables
The cartridge housing is typically polypropylene, which is inert under refrigerated, non-heated conditions. No documented leaching of BPA, phthalates, or other polymeric additives from Culligan IC-100A housings is known.
Ion-exchange resin saturation and breakthrough
If not replaced on schedule, the resin becomes exhausted and loses capacity to remove hardness and certain ions. This results in reduced filtration performance rather than contamination, but signals the need for timely replacement.
Incorrect installation or cartridge bypassing
User error in seating the cartridge can cause water to bypass the filter entirely, defeating its purpose. This is not a product defect but a common point of failure; follow manufacturer instructions carefully during installation.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
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Clearly Filtered
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More refrigerator filters grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.