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Model Name: TR400-C1 Max-flow Water Purifier
Brand:  AO Smith (USA)
Made in: China
Filters & Functions:

5-stage high-efficiency RO filtration system filters particles down to 0.001-0.0001 microns in size. It can effectively filter particles, residual chlorine, bacteria, virus, antibiotics and heavy metal, and, moreover, it boasts a tremendous Max-flow of fresh and pure water per minute. 

1st stage: PP filter lasts around 12 months;

2nd stage: active carbon lasts around 24 months; 

3rd stage: PP filter lasts around 24 months; 

4th stage: MAX3.0 RO filter lasts around 36 months; 

5th stage: MF active carbon hybrid filter lasts around 12 months (this stage filtration shapes the taste as slightly sweet and pleasant). 

Features: 
●  Intelligent filter life monitors; 
● 1.3L/Min Max-flow design ensures you to get the fresh and pure water at your great ease;
● Patented long-life and water saving (1:1) RO filter technology brings an extremely low cost operation (yearly filter change cost is only around 350RMB on average).