Both teams are very strong on the back end with Bobrovsky and Sorokin. Both clubs also have strong defenses, each having allowed under 250 goals last season. Both teams have several new players on offense and I just don't see much scoring this early in the season.
Finally, the under is 9-3-3 in the last 15 meetings between the clubs and 10-1 in the last 11 played in New York

Take the under 6 goals.