iSpring US31 Classic 3-Stage Under Sink Water Filtration System for Drinking, Tankless, High Capacity, Sediment + Carbon + Carbon (Newest Version)
About this item
- [Classic Drinking Filter]:The water flows through PP sediment filtration, dual CTO carbon filtration, and the 2nd layer contains unique CTO filtration. It removes common sediments in drinking water, like dust, sand, particles, dirt and rust. Effectively removes PFAS, heavy metals, harmful chemicals, cloudiness, colors and more. It removes not only harmful pollutants but also chlorine taste and odor.
- [Fresh Healthy Water Supplier]: The on-demand fast flow rate of the iSpring US31 allows it to meet the widest possible range of needs in your home. Up to 20x more effective than the common water pitcher dispenser. Flow Rate: Up to 1GPM depending on source water pressure. Maxim Pressure: 90psi. It washes fresh produce like fruit and vegetables, brings health protection, can provide your entire family with delicious, clean water straight from your tap.
- [Excellent Quality and Design]: Features beautiful European-designed brushed nickel all-metal faucet and clear see-through 1st stage housing. Clear see-through 1st stage housing makes filter inspection a snap. Manufactured to comply strictly with FDA standards and tested by independent third party against NSF/ANSI standards (42, 53, 61) for water quality, material safety and structural integrity.
- [Easy to Install and Maintain]: This system is designed for easy installation, low maintenance, and features dual carbon block filters along with a high-capacity sediment filter. The sediment filter protects and extends the life of your system, while the carbon block filters work to remove many harmful contaminants. You can replace the filter every 6 to 12 months, judged by the water’s taste.
- [TDS Note and Customer Services]: This under sink water filter will not reduce the TDS of the incoming water. Instead, it keeps the healthy minerals in your water. If you are interested in a filter that removes TDS, please consider a iSpring reverse osmosis system.Backed by a 1-year Manufacturer with lifetime support from Atlanta, GA USA. For any issue or concern, please don't hesitate to contact us.
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iSpring US31 Classic 3-Stage Under Sink Water Filtration System for Drinking, Tankless, High Capacity, Sediment + Carbon + Carbon (Newest Version)
$142.99
- Availability: In Stock
- Model: US31
- Manufacturer: iSpring
Write Review

2015-12-26
I purchased this US31 water filter system from iSpring a couple of months already. The product was relatively easy to install with the clear instructions. Unfortunately, the previous owner made the hole for the water dispenser a little too big on the kitchen counter. After letting the water dispenser rod hanging loose for so long I finally have some idea to fix the problem. But because the nut was pretty difficult to install under the kitchen counter, I dropped the nut and it fell in a slot at the bottom of the cabinet where I cannot retrieve. So I contacted iSpring for the spare part. Helen at iSpring immediately responded to my request. Not only she will mail me the nut was missing, she promised to send me the bigger washers as well the same day. She made me feel like a VIP and I definitely believe this business is worth recommending to everyone. Not only this is a five-star company in terms of service, their product is also top quality as well. This is the first product review in my entire life at age 54 and I can bet I will not be writing another one for years to come. I am happy I found iSpring and looking forward to do business with them for years to come.
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US31 Manual