Somerset Rebels promoter Debbie Hancock says reaching the League Cup final is a momentous achievement for the club.
The Rebels beat Newcastle 93-86 on aggregate to reach the final for the first time in their history.
They will now face either Workington or Ipswich, who have yet to meet in their decider after Sunday's meeting was called off because of bad weather.
"It's the biggest thing that's happened to Somerset and it's going to be brilliant," Hancock told BBC Somerset.
Speaking of Friday night's 50-40 home win, she added: "It was an all-round team performance. They were really up for it and Newcastle were not happy."
The Rebels are also in a strong position in their Premier League play-off group.
They claimed a second victory over Newcastle, winning 53-37, in Friday's double-header at the Oaktree Arena and although they lost 48-44 in the return leg on Sunday, they remain top of the standings.
Their final home play-off meeting against bottom club Leicester will take place on 5 October, where they will be looking to extend their unbeaten home record.