Fuel Filter [Vanagon/Eurovan]
Proposition 65: This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm.
Fuel injection pumps and the injectors themselves operate at incredibly precise tolerances, dirt and rust cannot be tolerated. That and the fact that pumps and injectors are not cheap is reason enough to keep your vans fuel as clean as possible.
Notes: Some 1983 and 1984 models use both fuel filters.