Single-hole installation, Integrated check valve, KliK connection, Neoperl aerator, cover plate for 8" c/c pre-drilled kitchen sink included. Swivel pull-down spout with pause button, push-button diverter and 65" braided nylon flexible hose. Requires (4) AA batteries up to a 2 year lifespan (not included), infrared sensor (with 2.5" - 6.5 cm range) will activate/deactivate flow with hand movement. Hand spray will automatically be activated when pulled from its housin. Manual override possible for regular handle use. Safety timer will automatically close water after 3 minutes of no activity. Maximum flow of 8.3 L/min (2.2 gpm) at 60 psi. Brass body, 3/8" (9/16-24 UNEF) connections with flexible stainless steel braided connectors.