iSpring PH100 6-Stage 100 GPD Under Sink Reverse Osmosis RO Drinking Water Filtration System 1:1 Pure to Waste Ratio with Alkaline Remineralization
About this item
- 6-Stage reverse osmosis water filtration. Capable of removing up to 99% of over 1,000 contaminants, including PFAS, lead (removes up to 98% of lead), chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more. Comes with US made filters and RO membrane.
- iSpring PH100 rated at 100 GPD, with up to 1:1 filtered water to waste water ratio and upgraded 3/8” input and output design.
- Including an additional sixth stage - an Alkaline Remineralization filter which can restore minerals and balanced alkalinity.
- Do-it-yourself installation, typically in a couple of hours with industry-leading help just a phone call away. Fits under a standard kitchen sink, with all parts included, instructions, and videos. For leak-free installation, simply push tubing ½ inch deep into quick-fitting connectors and lock - no threading pipes needed.
- Features European-designed brushed nickel all-metal faucet and clear see-through 1st stage housing. Backed by a 1-year Manufacturer Warranty with lifetime support line 678-261-7611 from Atlanta, GA USA.
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iSpring PH100 6-Stage 100 GPD Under Sink Reverse Osmosis RO Drinking Water Filtration System 1:1 Pure to Waste Ratio with Alkaline Remineralization
$373.99
- Availability: In Stock
- Model: PH100
- Manufacturer: iSpring
Write Review

2020-03-24
I installed the iSpring PH100 Reverse Osmosis system in my basement under the kitchen sink area because we did not want to use up the space in my sink cabinet; additionally I wanted to hook it to my refrigerator water dispenser and ice maker. I wrote an earlier review here but wanted to add that I installed the UV kit to add on to this unit to kill any microorganisms that may be in our water. I have city water, so they say the UV light is not really necessary, however once in a while if a city pipe breaks, there is a “boil water alert” for a few days; this addition should protect us from that sort of issue. I also had great support from iSpring several times when I called with technical questions regarding hooking up to my refrigerator along with my cold water kitchen faucet instead of the supplied chrome faucet. We did not want to drill another hole in our marble counter top. Earlier I was concerned about the ¼” tubing size on the UV unit limiting my overall water flow to the refrigerator and kitchen sink, however the flow was not significantly reduced. Our kitchen faucet (cold) fills a 16oz. measure in 9 seconds; our refrigerator water dispenser fills 16oz. in 23 seconds, but this might be caused by our refrigerator carbon block filter (our house water pressure is 70) if I replace it with a pass through unit ( no filtering) flow should go up significantly.
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PH100 Manual