Top recommended RO water filter!
- It is not only certified to NSF 53, it is also tested and certified to meet standards 42, 58, and 401 (the Emerging Compounds standard) as well as P473
- The unit offers instant access to healthy water by providing 0.5 gallons per minute
- This RO system also improves water pH balance for optimally alkaline drinking water
- Activated carbon filter and RO membranes.
NSF 42, NSF 53, NSF 58, NSF 401 (the Emerging Compounds standard), NSF P473 (PFOA and PFOS)
Country of originUSA
The Aquasana OptimH2O Reverse Osmosis Water Filter with Remineralizer and Brushed Nickel Faucet is a spectacular piece of gear. It is not only certified to NSF 53, it is also tested and certified to meet standards 42, 58, and 401 (the Emerging Compounds standard) as well as P473. Currently, no other RO system appears to carry such a wealth of certifications and the Aquasana is special for another reason too: it incorporates carbon filtration as well as the RO membrane, along with remineralization.
The unit offers instant access to healthy water by providing 0.5 gallons per minute. Tests show that the Aquasana eliminates >99.99% of cysts, 96% of PFOA and PFOS, and is NSF Certified to remove:
- Fluoride 95%
- Mercury 95%
- Chromium 96%
- Chlorine 97%
- Arsenic 97%
- Chloramine 97%
- Asbestos 99%
- Lead 99%.
The Aquasana OptimH2O removes 99% of 87 other contaminants including pharmaceuticals and more. It is also one of the first units to acquire certification for P473: Drinking Water Treatment Units – PFOA and PFOS. This NSF certification verifies that a water treatment device reduces perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) to below the health advisory levels set by the U.S. Environmental Protection Agency (EPA). PFOA and PFOS have been used to manufacture carpets, clothing, cookware, fabrics for furniture and paper packaging as well as for firefighting at airports and in myriad industrial processes. These chemicals are known to cause a variety of health problems and are now banned in many countries. Find out more about PFOA and PFOS here.
And, while it’s removing impurities, the Remineralizer ensures that water retains healthy mineral such as calcium, magnesium, and potassium. This RO system also improves water pH balance for optimally alkaline drinking water.
The Aquasana is certified to rigorous standards and will not leach contaminants back into your water, which can be a worry with some other units where water sits in a plastic lined tank for hours on end. The tank is steel and the bladder is made of Butyl rubber, which is non-toxic and free from Volatile Organic Content.
Because this is an RO system, it requires some DIY skills for installation, typically under the kitchen sink. This package includes a first set of filters, the RO tank, a metal (lead-free) faucet, and all the parts necessary for installation. Parts include: System manifold, Carbon Filter Sump, Membrane Filter Sump, Claryum Filter Sump, Remineralizer, Faucet, Gasket, Nut, Washer, Spacer, Quick Connector (for faucet), Water Storage Tank, Eye Dropper, Tank Connector, Plumbers Tape, Drain Connector, Nuts(2) & Bolts(2), Foam Seal, Flow Restrictor & 90°, Tubing 1/4″ White, Tubing 3/8″ White, Tubing 3/8″ Red, Screws(3) + Bracket, Brass Tee, Carbon Filter Cartridge, and Claryum Filter Cartridge.
Reverse osmosis systems offer the safest, most effective form of water filtration and treatment available in the home. All RO systems produce waste water, but the Aquasana performs a little better than some as it only produces 3 gallons of waste water per every 1 gallon of drinking water. This manifold system is sadly not compatible with the Watts Premier ZeroWaste® Reverse Osmosis Retrofit Kit however, which would otherwise enable you to divert waste water into the hot water supply (away from drinking water) and reduce water waste.
Once installed, this system is low maintenance. The carbon and Claryum filter housings easily twist off for fast and simple cartridge replacements. The RO membrane is certified to last a year, as is the Remineralizer. The filters should be changed every 6 months, and the whole unit comes with a 2-year warranty and a 90-day guarantee.
A few facts and figures about this unit:
- Daily Production (DPR): 13.32 gallons
- Operating Pressure: 40-100 psi
- Operating Temperature: 40-100 F
- Manifold Dimensions: 12″ × 4.5″ × 12.5″ (L × W × H)
- Tank Dimensions: 16″ × 11″ (H × Diameter).
Aquasana OptimH2O RO vs. iSpring and Watts Premier
Hands down, the Aquasana OptimH2O RO water filter is best in class. Nothing else comes close to its level of performance nor the company’s transparency and pursuit of ever cleaner water for its customers. The unit itself is robust, but if anything does go awry, Aquasana are known for their exemplary customer service and support. The capacity of this unit is a lot lower, however, than the iSpring RCC7, so if you have a large family and/or a lower budget, that option may be preferable. Neither the iSpring nor the Watts Premier carry certifications for the removal of emerging compounds of concern or PFOA and PFOS, though, so if your water use is average and you have the budget for it, the Aquasana is the clear winner in this category.