Seals-it Firewall Grommet, 1 Split Hole, 3 in OD, 1/2 in ID, Flat (Qty 1)$$Hardware

For any application with existing Hose, wire, cable, etc Two piece design that comes together to complete the seal for easy installation around any existing application Does not require disassembly of existing lines Qty 1 grommetYou may also like 14" Hand Rivet Tool Kit with 100Pcs Rivet Nuts, Mandrels M6 M8 M10 1/4-20 5/16-18 3/8-16 10-24 Rugged.