4-5/8" Faucet Shank with Welded NippleThe 4 5 8" Faucet Shank with Welded Nipple is used on refrigerators with a thicker wall or freezers. Simply drill a 1" hole in the freezer or refrigerator, attach the shank and faucet, hook up your liquid tubing to the welded nipple, and you are ready to go. This shank has a 1 4" bore size. California Proposition 65 Proposition 65 Warning: This product can expose you to chemicals that are known to the State of California to cause cancer and birth