Enroth, in his seventh start this season, made 11 of his 29 saves in the final frame.
Ehrhoff broke a scoreless tie 17 seconds into the third when his shot from the point rebounded off the backboard and glanced off the pads of Philadelphia's Steve Mason into the net.
Mason turned aside 20-of-21 for Philadelphia, which is on verge of elimination from post-season contention.
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