They remove stains

Dual-cross-handle single-hole deck-mount laboratory faucets have two cross-shaped handles that users grip and turn to start or stop the flow of water through the faucet

Drilling Capacity Steel: 3/4 in

Self-Tapping Screws

Each handle is operated separately to control the hot and cold water supplies and adjust the temperature of the water coming out of the spout

Chicago Faucets Spout, Fits Brand Chicago Faucets, Faucet Spout Shape Gooseneck - GN2BJKABCP ADA Compliant-Yes They remove stainsSpout; Faucet Part Type: Gooseneck Spouts; Fits Brand: Chicago Faucets; For Use with Series: Manual; For Use With Mfr. Model Number: 895 ABCP; Connection: 3 8 in to 18 in MNPS; Faucet Spout Shape: Gooseneck; Finish: Chrome; Material of Construction: Brass