Answer: stopcock

AnswerCrossword Clue
STOPCOCKType of faucet
STOPCOCKFaucet.
STOPCOCKValve on a pipe
STOPCOCKFaucet with a rotating plug
stopcocka type of faucet (a tap)
stopcockAn externally operated valve regulating the flow of a liquid or gas through a pipe