Question: Does it support both hot and cold water inflows?
Answer: Of course, this bathroom sink faucet has a single handle hot and cold water control.
Question: Will it cover a three-hole sink?
Answer: Yes, the deck plate 6.3 inch is used for covering 3 hole sink.it fit perfectly and I can't see any gap at all. If yours is standard, it should work perfectly.
Question: Is this faucet all metal?
Answer: Yes, its main body is made of brass, the rotary sprayer is also made of brass, and the handle is made of zinc alloy.
Question: For the kitchen which is better to take, high or low?
Answer: Height is adjustable, high can be lowered