Fairfax County vice investigators and police officers raided two health spas Friday as part of a three-month undercover probe of possible prostitution activity, police said yesterday.

The officers confiscated "records, index files, money and sex paraphernalia" at about 10:30 in simultaneous raids at the Valentine Health Spas at 8503 Lee Hwy. and 5865 Columbia Pike, police spokesman Warren Carmichael said. l

Sources said the two spas were owned by the former wife of Karl Klaus Bolle, the man recently linked in an FBI search warrant affidavit to three District of Columbia massage parlors that were raided Thursday night.

The raids followed a similar operation by Alexandria police in early February on five "alleged health clubs" on Duke, Washington and Bruce streets.

Carmichael said no arrests were made in the Fairfax raids and that there was no resistance. Names of employees and patrons were taken, he said.

The confiscated materials will be studied and then presented to a Fairfax County grand jury investigating possible "violations of state and county codes relating to sexual acts," Carmichael said.

Bill Walker, an employee of the Lee Highway establishment, denied yesterday that Bolle's former wife controlled any interests in the two spas and said "we're operating as usual today. . . ."

"We have a service here . . . have many customers and receive no complaints," Walker said. "If I thought there was anything wrong with this, I wouldn't be involved with it, but there are some narrow-minded people around."

At the Columbia Pike establishment, a person who said she was a part-time employee declined to say how to reach the owner and otherwise refused to comment.