Open or Closed?
Parker Racor manufactures BOTH. Closed Crankcase Ventilation (CCV) systems work to reduce the total emissions of engines and Racor CCV filtration systems work to remove system contaminants.

Open Crankcase Ventilation (CV) systems remove oil mist on applications that allow venting directly into the atmosphere. Open or closed, you know you are getting a superior system with Parker Racor.