The "7-key" designation typically refers to the integrated control piano keys that manage the following functions:
Pull-Out Main Faucet: A high-arc faucet with multiple spray modes (stream, spray, and blade) and a retractable hose for full sink coverage.
Integrated Waterfall Spout: A wide, gentle flow perfect for washing delicate produce or rinsing large platters without splashing.
High-Pressure Cup Washer: An inverted rinser that cleans glasses and bottles in seconds with a simple press.
Purified Water Tap: A dedicated slim spout for filtered drinking water, eliminating the need for separate countertop dispensers.
Soap Dispenser: A built-in pump that keeps the countertop clutter-free.
Digital Temperature Display: Often powered by water flow (hydroelectric), showing real-time water temperature to prevent scalding.
LED Ambient Lighting: Subtle blue or white lighting along the control panel for a high-tech aesthetic.
*Size: 18/30 inch
