FORMER Port Adelaide captains Gavin Wanganeen and Warren Tredrea both believe the Power side of today emulates the one they played in during the early 2000s.

The two were key players in the club's 2004 premiership side and joined CEO Keith Thomas on Tuesday to celebrate the 10-year anniversary of the Grand Final win over the Brisbane Lions.

Port will again face the Lions on Saturday at Adelaide Oval and will wear commemorative 2004-era jumpers.

Speaking at Alberton on Tuesday, Tredrea said the current Port Adelaide group was two to three years of experience behind his premiership-winning squad.

Wanganeen agreed, and although he claimed more immediate success was possible, he said the Power's premiership window would be wide open in a few years' time.

"The playing group is probably two to three years away, experience wise, to achieve what the 2004 list achieved," Wanganeen said.

"They're headed in the right direction, the guys are getting enough games into the legs and into the body.

"I think they'll just keep improving - definitely I think in two or three years we should be gearing up to get some serious success."

As well as celebrating the club's first and only AFL flag, the trio acknowledged a significant membership milestone, as Port surpassed 50,000 members for the first time.

Tredrea said he was "dumbfounded" the club had reached the mark and that he never believed even 40,000 members was achievable.

He said the huge base ensured Port would no longer be made fun of for small crowds.

"The club was in a pretty dire state around the time that I stepped away from the club (2010) and you just wondered where the future was going and whether sustainability was a possibility," Tredrea said.

"I remember the club saying last year they [would] hit 40,000 and I said there was no way… I'm dumfounded that 50,000 members have signed up.

"The club is not going to be ridiculed for its attendances anymore.

"The people are behind it but certainly the product that Ken Hinkley and his coaches are putting out there is first class and makes them proud to be a Port supporter again."

See this weekend's 2004 premiership commemoration match against the Lions at the Adelaide Oval as well as heaps of other great games with a general admission or 3-game membership. Visit weareportadelaide.com.au to get yours today or call 1300 GO PAFC.