Montreal sent prospect Philippe Lefebvre and a 2014 seventh-round pick to Florida for the six-foot-five 228-pound old Parros. It is the same seventh rounder Montreal acquired from the Panthers at the NHL draft last week.
The Washington, Pa., native had one goal, one assist and 57 penalty minutes last season. In 452 career NHL games, he has 18 goals, 17 assists and 1,007 penalty minutes.
The Canadiens were likely looking to take some of the fighting workload off Brandon Prust by dealing for Parros, one of the league's best-known heavyweights. The 33-year-old is also known for his flamboyant moustaches.
Drafted 22nd overall by Los Angeles in 1999, Parros has also played for the Kings, Colorado, Anaheim. He won a Stanley Cup with the Ducks in 2007.
The undrafted Lefebvre, a left winger, signed as a free agent with Montreal in 2009. He split last season between Wheeling of the ECHL and Hamilton of the AHL.