Yes. Reverse osmosis is one of the most effective residential technologies for PFAS, with the EPA citing 94-99%+ reduction. The difference with this system is that the performance is certified, not just claimed: the GRO-575B is certified by IAPMO R&T against NSF/ANSI 53 for Total PFAS reduction at up to 99.7%. In the certification test, challenge water containing PFOA at 500 parts per trillion and PFOS at 1,000 parts per trillion, plus PFHxS, PFNA, PFHpA, PFBS, and PFDA, was reduced to 20 parts per trillion or less. That is exactly the third-party verification you should demand from any filter marketed for PFAS.

The IAPMO R&T certification against NSF/ANSI 53 covers Total PFAS reduction up to 99.7%. The certification challenge water includes seven PFAS compounds: PFOA at 500 ppt and PFOS at 1,000 ppt, plus PFHxS, PFNA, PFHpA, PFBS, and PFDA, all reduced to 20 ppt or less. Those test concentrations are far above what most homes ever see (the EPA limits for PFOA and PFOS are 4 ppt), so the system is proven against a much harder challenge than typical real-world contamination. On top of the PFAS certification, the system itself carries NSF/ANSI 42, 53, and 58 plus CSA B483.1 from NSF International.

The Pure-75 is our value reverse osmosis system at $595. It uses the same core technology, and RO in general removes most PFAS, but the Pure-75 has not been put through PFAS certification testing, so we cannot put a certified number on it. The GRO-575B costs more because Pentair built and certified it specifically for PFAS: IAPMO R&T tested against NSF/ANSI 53 for 99.7% Total PFAS reduction, plus NSF/ANSI 42, 53, 58, and CSA B483.1 on the system. If PFAS is the reason you are buying, get the certified system. If you just want great-tasting low-TDS drinking water and PFAS is not your concern, the Pure-75 is the better value.

The 5-stage design reduces lead, arsenic V, fluoride, and chromium 6, rejects 95.5% of total dissolved solids (TDS), and addresses VOCs and cysts. That breadth is the advantage of reverse osmosis over single-purpose PFAS media: the same membrane and filter train that handles forever chemicals also covers the other contaminants people worry about most at the kitchen tap. The system carries NSF/ANSI 42, 53, and 58 certifications, which cover aesthetic effects, health effects, and reverse osmosis performance respectively.

The pre-filters and post-filter are replaced yearly, and the RO membrane is replaced every 18 months. The system is rated for 675 gallons of capacity. Changes are genuinely easy: the cartridges are click-in and color-coded, with integrated check valves that stop the water automatically when a cartridge is removed, so you do not need to shut off the water supply. The replacement cartridges are F1GC-RC, FDF1-RC, the F2B2-RC2 twin pack, and the GRO75-RC membrane.

The system uses a 75 GPD (gallons per day) membrane, and its certified production rate is 21.08 gallons per day at standard NSF test conditions; real-world output varies with feed pressure and temperature. For perspective, a family uses roughly 2 to 4 gallons a day for drinking and cooking, so the system produces far more than you will draw. The 4.4 gallon pressurized storage tank means the water is already made and waiting when you open the faucet. The system needs feed water between 40 and 100 psi at 40 to 100 F.

Most homeowners with basic DIY comfort can. The system mounts under the kitchen sink, all tubing uses 3/8 inch quick-connect (push-to-connect) fittings, and the air gap faucet is included in the box. The most involved step is drilling the faucet hole in the sink or countertop if there is no existing sprayer hole to use. No electricity is required. If you would rather not do it, any local plumber can install it in about an hour, and you can call or text Aidan at 800-460-5810 with questions either way.

It depends on what you want to protect. This RO system treats the water you drink and cook with at the kitchen tap, which is where PFAS exposure mostly happens, and at $895 it is the most affordable certified path to PFAS-free drinking water. A whole-house system treats every tap, shower, and appliance, which matters more at high contamination levels or if you want full-home coverage. Either way, start with a PFAS water test (EPA 537.1 lab analysis) so you know your actual levels, then call us at 800-460-5810 and we will size the right approach from the numbers, not guesswork.