Waterdrop WD-FC-01 Faucet Water Filter vs Waterdrop CTF-01 Countertop Water Filter

Buy the WD-FC-01 if you want a cheap, compact faucet-mounted filter that screws onto your existing tap and switches between filtered and unfiltered water. Buy the CTF-01 if you want to filter far more water before changing a cartridge and want five filtration stages instead of carbon alone. The faucet filter is lighter and simpler; the countertop unit is bulkier, sits on the counter and needs its own hookup, but its cartridge lasts much longer and its flow rate is higher. Owners of faucet filters like the convenience but complain about flow slowdown as the cartridge ages; countertop owners accept the footprint for longer service intervals.

• Choose the Waterdrop WD-FC-01 if you rent, have a standard threaded faucet, and want basic chlorine reduction with a quick cartridge swap every few months.
• Choose the Waterdrop CTF-01 if you want a five-stage countertop system with a cartridge that lasts about a year and a faster flow.