Vortopt DR2 1000GPD 7 Stage Under Sink Purifier Tankless RO Water Filter System

The tested flow rate can reach up to 0.7 gallon per minute. With fast and stable water flow, you can fill up a 8oz cup with fresh drinking water within 5 secs! Compared with traditional RO systems, the compact and tankless design saves 70% under-sink space and prevents any leakage.

eBay