Carey Price made 30 saves for his 33rd win of the season and the Montreal Canadiens defeated the Ottawa Senators 4-1 on Sunday night to sweep the home-and-home series.
Tomas Plekanec, Jordie Benn, Paul Byron and Nathan Beaulieu scored for the Canadiens, who lead the Atlantic Division by four points over the Senators, who still have one game in hand.
Tom Pyatt scored a first-period goal for the Senators. Craig Anderson stopped 33 shots.
The Canadiens also beat the Senators in Ottawa on Saturday, winning 4-3 in a shootout.