The Tigers triumphed 25-7, 25-14, 25-15.
"The story of regionals is, come in, play at a consistent level," Rising Sun coach Rich Wilson said. "We know the teams that we're playing so it's not like there's any surprise. We didn't play at a consistent level. I tried to sub everybody in tonight, which I didn't do the other night. So the play kind of suffered there in the second and third game. But I still keep the core in there and I expect them to still perform. So, yeah, it's like get in, get it over with, stay healthy. Let's not break or hurt anybody. That kind of deal."
The Tigers travel to Easton Saturday for the region title match at 2 p.m.
Rising Sun is seeking a sixth straight region title and 16th in program history. The Tigers have captured three state titles.
Rising Sun 3, North Harford 0
The Tigers triumphed 25-11, 25-9, 25-9 in the playoffs opener Monday night, November 5.
Sophia Eckerd had a team-high 12 kills and nine aces. Lauren Hudson supplied seven kills and eight aces.
Emily Jackson posted 14 assists and Megan Hoyle added 10. Breelyn Young provided seven digs and three aces.