The Moroso filtered valve cover breather clamps onto a 1-3/8 inch opening and features an open, no-hood design for unobstructed airflow. The clamp-on fit keeps installation reversible while the internal screen filters oil mist from crankcase vapors. It's appropriate for applications that need an unrestricted filtered breather on valve cover tubes without additional shielding.
Moroso Filtered Valve Cover Breather - Clamp-On - No Hood - 1-3/8in ID