The Warriors got on the board first with a Mark Cannon (pictured) goal at of the opening period, but after that the Beavers dominated play and skated away with a 4-1 victory.
Lou Garritan notched the game winner, shorthanded at of the second and Matt Climie made 25 saves for the win.
Will Hooper earned the start at the other end and turned aside 19 of 22 shots.
The Beavers got a goal and an assist from Ryan Miller in the finale and cruised to a 3-1 win and road series sweep.
Layne Sedevie started for the Beavers and was little tested in making only 15 saves.
Jason Baclig scored the lone goal for the home team at 18:02 of the second period and Matt Kelly was between the pipes for the Warriors, stopping 22 of 25.