80Pcs/Set Rubber Vacuum Cap Assortment SET 5/32" to 3/8" Sizes, Prevent Vacuum Leaks - AliExpress
80 pc Carburetor and Vacuum Rubber Cap Plug Assortment Kit Intake Vacuum Lines | eBay
160pc Carburetor and Vacuum Cap Plug Assortment Kit Intake Vacuum Line | eBay
Amazon.com: BUSY-CORNER 80 Pieces Vacuum Cap Assortment, Rubber, Dropper ID from 5/32" to 3/8" Sizes, Hose Caps Kit for Carburetor, Manifold (Black) : Automotive