Aquasure · Under-Sink RO Systems
Premier Series AS-PR75A 75 GPD Under Sink Reverse Osmosis System
RO systems lower concern; filters inherently PFAS-free. Verify housing material.
Reverse osmosis and carbon filters have no known PFAS risk. Plastic housing material unspecified; brand offers no PFAS disclosure or testing data.
We flunk more products than we pass. This one earned its grade. How we grade
Material
RO/carbon filter cartridges, plastic housing
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.
- 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, all on its full breakdown.
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, all on its full breakdown.
- polyurethane foam
- We found no PFAS statement from the brand
- Volatile Organic Compound (VOC) Off-Gassing
4 hazards checked on this product, all on its full breakdown.
What Premier Series AS-PR75A 75 Osmosis System is made of, ingredients and materials
The AS-PR75A uses multi-stage cartridge filtration (sediment, carbon, RO membrane) housed in plastic casing. Reverse osmosis membranes do not leach PFAS and are not associated with PFAS. The plastic housing material (likely polypropylene or ABS based on typical RO system construction) is not documented as a known leachate source under normal use. Carbon filter media can shed fine particles if cartridges degrade or are not replaced on schedule; RO membranes are sealed, not a direct contact hazard.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Bacterial growth in filter housing and cartridges
If cartridges are not replaced on the recommended schedule or if the system is not used regularly, stagnant water and biofilm can accumulate in the plastic housing and filter media, potentially contaminating treated water.
Plastic housing leachates (additive migration)
The specific plastic composition and additives (BPA, phthalates, or slip agents) in the housing are not documented in available product information. Under normal ambient conditions leaching risk is low, but long-term exposure to stored water in direct sunlight or warm temperatures could increase migration.
Microplastics
Carbon filter media and pre-filter materials can shed fine particles if cartridges are aged, damaged, or installed incorrectly; this is a general concern for all cartridge-based systems, not specific to Aquasure branding.
Source, EPA ↗Pressure tank corrosion (if included model)
Some AS-PR75A configurations include a storage tank; if present, internal tank coatings or metal components may corrode over time if the system is not properly pressurized or maintained, though this is not a documented issue for this brand.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Membrane or cartridge component manufacturing residues
No public record of contamination or residue issues specific to AS-PR75A cartridges; however, Aquasure does not disclose third-party testing or supply chain vetting for manufacturing solvents or processing chemicals.
How is this PFAS grade calculated?
The brand's record and disclosure
Aquasure is a water filtration brand with no established public record of safety recalls, material disclosure controversies, or third-party testing transparency specific to housing leachables. The brand has not made public statements about PFAS mitigation in their products or supply chain. No NSF or WQA certifications are listed in widely available product documentation for this model. Brand transparency on plastic sourcing and housing specifications remains limited.
How it compares in its category
Under-sink RO systems at this capacity (75 GPD) typically use similar multi-stage cartridge designs with plastic housings. The AS-PR75A is mid-range in cost and does not stand out for material transparency compared to competitors. Most systems in this class do not disclose housing plastic type or independent testing for leachables. Systems with metal housings or documented material certifications may offer slightly lower concern for plastic-leachate risk, but are less common at this price point.
If you buy it
Replace sediment and carbon cartridges every 6-12 months depending on water quality to prevent bacterial biofilm buildup and membrane clogging. Do not expose the housing to direct heat above 40C (104F) or sunlight, as plastic degradation can accelerate. The RO membrane itself does not require replacement if cartridges are maintained; manufacturer guidance typically specifies 2-3 year intervals for the membrane under normal use. Inspect plastic connections and housings annually for cracks or discoloration, which signal material degradation.
What is not known about PFAS in this product?
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Aquasure has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Premier Series AS-PR75A 75 GPD Under Sink Reverse Osmosis System?
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, all on its full breakdown.
- Multi-stage filter cartridges (activated carbon, ion exchange resins)
- The brand calls it PFAS-free, which we have not verified
- Bacterial growth in filter cartridges
3 hazards checked on this product, all on its full breakdown.
- Carbon/RO membrane filters, plastic housing
- We found no PFAS statement from the brand
- Bacterial growth in stagnant filter cartridges
2 hazards checked on this product, all on its full breakdown.
More under-sink ro systems 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.