HMS 14" Flat Top Air Cleaner Lid & Base
14" Flat Top Air Cleaner Lid has a 5/16 Center Hole
14" Flat Top Air Cleaner Base includes 1/2" sure seal, outer lip is 1/2" tall
Top and bottom are sold separately. Available in black powder or a mill finish.
https://hammondmotorsports.com/hms-14-flat-top-air-cleaner-lid-black-powder/