Ultra Refill
Low-risk filter material, but the brand provides no PFAS transparency.
Ultra Refill uses activated carbon and ion-exchange resin, standard filter materials with lower PFAS risk. The brand makes no public statements about PFAS removal or material sourcing, so you're relying on material type alone.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Activated carbon and ion-exchange resin cartridge
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
You may also be interested in
Top-graded picks in the categories readers replace first, every one scored on the same rubric.
Aqua Pure
3M Aqua-Pure AP802B Whole House Filter Housing
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product. See all of them.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product. See all of them.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product. See all of them.
What Ultra Refill is made of, ingredients and materials
The Ultra Refill cartridge uses activated carbon (porous form of carbon that traps contaminants via adsorption) paired with ion-exchange resin (synthetic polymer beads that swap undesirable ions for harmless ones). Both materials are industry-standard, well-studied, and do not leach harmful chemicals into water under normal use. Activated carbon itself is inert and food-grade; ion-exchange resins are used in medical and food applications and pose no known leaching risk when used as intended.
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Bacterial growth in filter media
Activated carbon can harbor bacteria if cartridge is not replaced on schedule or if water sits stagnant in the filter housing. Regular replacement (every 2-3 months) and flushing the filter before first use mitigate this risk.
Resin particle shedding
New ion-exchange cartridges may release small resin particles or 'color' into water on first use. Pre-flushing the cartridge and running water for 30 seconds before drinking reduces this; particles are inert and not toxic.
PFAS
Independent testing suggests activated carbon does remove some PFAS (particularly longer-chain variants), but TAPP makes no explicit claim and provides no test data. Buyers should not assume this filter alone protects against PFAS without third-party verification.
Source, ATSDR ↗What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Leaching from housing or seals
TAPP Ultra Refill housings are typically plastic (polycarbonate or ABS); no recalls or published reports of leaching from housing or gasket materials. Standard faucet-mount design poses minimal contact time and temperature stress.
Chlorine and organic compounds breakthrough
Activated carbon is effective for chlorine and volatile organics, but performance declines over time and with high contaminant loads. Cartridge replacement schedule matters; no safety hazard from expired media other than reduced efficacy.
The full breakdown
The brand's record and disclosure
The brand markets primarily in Europe and has built reputation around affordability and convenience rather than third-party certification leadership. The brand has not published independent testing reports or specific PFAS removal claims; marketing emphasizes general contaminant reduction without granular disclosure. No recalls or safety incidents involving the Ultra Refill cartridge are on public record. The lack of PFAS-specific transparency is a marketing and trust gap, not evidence of poor performance.
How it compares in its category
Faucet-mounted filters occupy the budget tier of water filtration; activated carbon plus resin is a proven, cost-effective formula used by many brands (Brita, PUR, others). Most competitors in this category do not publish detailed PFAS data either, making TAPP's silence typical rather than exceptional. The Ultra Refill's design is simpler and lower-cost than pitcher or under-sink systems, trading some performance breadth for convenience and price.
If you buy it
Replace cartridges every 2-3 months or after 100 gallons of flow (whichever comes first) to maintain effectiveness and prevent bacterial buildup in spent media. Do not use with water hotter than typical tap temperature; activated carbon and resin are stable but perform best on cold or room-temperature water. Store unused refills in a dry place away from direct sunlight. If you live in a PFAS-contaminated area, verify independent PFAS test data before relying on this filter as your primary defense.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Water Filters
Aquamira
Water Storage Treatment 2 oz Glass Bottles 60 gallons Purification
- glass bottles, sodium dichloroisocyanurate treatment chemical
- We found no PFAS statement from the brand
- Chemical overdose or misuse
5 hazards checked on this product. See all of them.
Big Berkey
Empty Housing with NO Filters Included
- Stainless steel housing and spigot
- We found no PFAS statement from the brand
- Bacterial growth and biofilm if filters not replaced
5 hazards checked on this product. See all of them.
LifeStraw
Home Glass Water Filter Pitcher
- Borosilicate glass pitcher, replaceable activated-carbon filter cartridge
- Bacterial growth in filter cartridge if unmaintained
5 hazards checked on this product. See all of them.
More water 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.