Aquasana OptimH2O System and Faucet Installation
The Aquasana OptimH2O installs under the kitchen sink with a dedicated faucet through the sink deck. Aquasana provides a detailed installation guide in the box and a video walkthrough at aquasana.com. The OptimH2O faucet installation is the same as any single-hole dedicated filter faucet: 1-3/8" hole, mounting nut from below, 1/4" push-connect tube to system. Aquasana's quick-connect filter change design (twist-off filter housings, no tools) is one of the most user-friendly in the under-sink RO category -- filter replacement takes 5 minutes without any tools.