Moroso 68813 Moroso Filtered Valve Cover Breather - Push-In - Half Hood - 1.22in IDMoroso 68813 Moroso Filtered Valve Cover Breather Push In Half Hood 1. 22in ID Valve Cover Filtered Breather, half hood, push In type. For Moroso Covers with 1. 22" punched holes Available in half hooded or non hooded Provides maximum protection against dirt and airborne debris without restricting air flow Available in two types Push In or Clamp On (for existing stacks includes clamp) Cleanable and re usable; oil before use One per pack Not legal for