Rozin Single Lever Bathroom Vessel Sink Faucet Deck Mount Taller Basin Mixer Tap Brushed Nickel Single Hole Deck Mount,Diameter of hole in sink should be 33mm to 45mm Cold and hot water,with two water supply lines,complete with mounting fittings If you need longer mounting shank for thicker countertop,contact seller to get extra parts or refer to ASIN:B06XKQTJWT If you need a sink drain,refer to item(ASIN): B00MBEERSY Rozin provides any replacement in future use,so contact unhesitatingly once you have any problem