iSpring RO100 5-Stage 100 GPD Under Sink Reverse Osmosis Drinking Water Filtration System 1:1 Pure to Waste Ratio with US Made Filters
$319.99
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About this item
- 5-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 RO100 rated at 100 GPD, with up to 1:1 filtered water to waste water ratio and upgraded 3/8” input and output design.
- 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.
Frequently Bought Together

iSpring RO100 5-Stage 100 GPD Under Sink Reverse Osmosis Drinking Water Filtration System 1:1 Pure to Waste Ratio with US Made Filters
$319.99
- Availability: In Stock
- Model: RO100
- Manufacturer: iSpring
- Product Dimensions: 14.20"L x 5.25"W x 17.00"H
- Product Weight: 28.30 LB
Reviews with images
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Ryan Presnal | 
2020-06-05
While I have no way of knowing how it will impact long term, I will say I am more comfortable drinking the water. We drank the water but it was never pleasant in spite of changing the filters every 6 months. Switching to this iSpring water system is one of the best purchase decisions i've ever made!

2020-06-05
While I have no way of knowing how it will impact long term, I will say I am more comfortable drinking the water. We drank the water but it was never pleasant in spite of changing the filters every 6 months. Switching to this iSpring water system is one of the best purchase decisions i've ever made!
Matt Cobb | 
2020-06-03
I could not be happier with my purchase of 's reverse osmosis filtration system and I have a high opinion of their customer service and product quality.

2020-06-03
I could not be happier with my purchase of 's reverse osmosis filtration system and I have a high opinion of their customer service and product quality.
Daniel LaRiviere | 
2020-05-25
I still can't believe I don't have to purchase and haul huge bottles of water home any more. This package has every part and installation was smooth because the manual is quite detailed.

2020-05-25
I still can't believe I don't have to purchase and haul huge bottles of water home any more. This package has every part and installation was smooth because the manual is quite detailed.
0 0 | 
2020-05-24
Seems to work pretty good, our well water was pretty bad! It's nice to have my new countertops cleared of the old counter-top systems.

2020-05-24
Seems to work pretty good, our well water was pretty bad! It's nice to have my new countertops cleared of the old counter-top systems.
0 0 | 
2020-05-22
What I especially love about this product in particular, besides my own personal experience with it, is the fact that this water filtration system comes with a yearlong satisfaction guaranteed warranty reiterating to me that this is an honest company with an honest product that they stand behind 100%. Item arrived promptly and in good condition.

2020-05-22
What I especially love about this product in particular, besides my own personal experience with it, is the fact that this water filtration system comes with a yearlong satisfaction guaranteed warranty reiterating to me that this is an honest company with an honest product that they stand behind 100%. Item arrived promptly and in good condition.
0 0 | 
2020-05-21
Gives peace of mind knowing our water is filtered for drinking, cooking, and our our 4 dogs.

2020-05-21
Gives peace of mind knowing our water is filtered for drinking, cooking, and our our 4 dogs.
Jerry Weaver | 
2020-05-20
The system I had before was a GE and it sucked. Got this system and installed it by myself. I found quite a bit of water under the sink in the morning so knew I had not tightened down ALL connections. Redid the tightening part and no problems since then.

2020-05-20
The system I had before was a GE and it sucked. Got this system and installed it by myself. I found quite a bit of water under the sink in the morning so knew I had not tightened down ALL connections. Redid the tightening part and no problems since then.
0 0 | 
2020-05-19
My tap TDS was 430, with a Pur pitcher it was 375, and now with this system it's 14.

2020-05-19
My tap TDS was 430, with a Pur pitcher it was 375, and now with this system it's 14.
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RO100 Manual