Best Overall Under-Sink Water Filter
Aquasana Two-Stage Under-Sink Water Filtration System
This Aquasana filter uses two types of carbon filters and an ion-exchange system to remove up to 99% of contaminants, allowing beneficial minerals to pass through and making it an easy choice for the best under-sink water filter. It’s also efficient enough to process half a gallon of water every minute, costing just $0.10 per gallon. The filters are simple to replace, and their compact size makes this filter convenient to fit inside a wide range of kitchen cabinet sizes.
Pros
- Removes up to 99% of 77 contaminants
- Includes kitchen faucet
- Easy to install
- Comes in multiple finishes
- Certified to National Science Foundation (NSF) Standards 42, 53 + 401 and P473
Cons
- Filters must be replaced every six months
