iSpring US31 3-Stage Under Sink Tankless Drinking Water Filtration System-Includes Sediment 2X CTO Carbon Block Filters (Newest Version)
$135.99
About this item
- Up to 20X more effective than the common water pitcher dispenser , Feed Water Temperature - 40-100 F
- Universal 10 inch sediment filter and 2 x 10 inch Carbon block filters
- Removes sediment, chlorine, and more to produce colorless, tasteless and odorless filtered water
- Manufactured to comply strictly with FDA standards and tested by independent third party against NSF/ANSI standards (42, 53, 61).
- Easy DIY installation. Lifetime support from iSpring in Atlanta, GA at (678) 261-7611

iSpring US31 3-Stage Under Sink Tankless Drinking Water Filtration System-Includes Sediment 2X CTO Carbon Block Filters (Newest Version)
$135.99- Availability: In Stock
- Model: US31
- Manufacturer: iSpring
Alfontso | 
2019-06-29
I have installed several filter systems over the years. This is my first three state model because we had the room for the extra size. Filter system is essential if you use your built in fridge filter for all your filtered water needs. That can bankrupt you with expensive filters. You can pick up bulk cartridges with correct specs by hunting on line.
The 3 stage system provides clean, tasteful water without solids. There is still calcium dissolved that shows up in our 60 cup urn, however our Keurig loves filtered water.

2019-06-29
I have installed several filter systems over the years. This is my first three state model because we had the room for the extra size. Filter system is essential if you use your built in fridge filter for all your filtered water needs. That can bankrupt you with expensive filters. You can pick up bulk cartridges with correct specs by hunting on line.
The 3 stage system provides clean, tasteful water without solids. There is still calcium dissolved that shows up in our 60 cup urn, however our Keurig loves filtered water.
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US31 Manual