Ford or Chevy chassis?
According to the Chevrolet P30 Service Manual, there is a filter at the carb inlet (carbureted models) and another in the line along the right side frame rail. I don't know about the Ford chassis but suspect there is a filter somewhere along the fuel line. The Ford chassis of that era was also known to have fuel pump problems and Ford re-designed the pump for the 1996 model year. The pump is in the fuel tank.
In a 1995, I would be suspicious of any rubber fuel line - it's 25 years old!
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL