Daystar’s Firewall Boot is one of the simplest ways to run wires, hoses, and other lines thru your vehicle’s firewall. Merely drill a 1.25 inch diameter hole within the firewall and install the boot. Run your wires, trim the boot as essential to one in all three different sizes (3/8 inch, 11/16 inch, or 1 inch), and protected the assembly with a zipper tie.
Safely and cleanly run wires thru firewalls and bulkheads
Protects wires from sharp edges; prevents wire chaffing and shorts
Gets rid of air/water leaks
Fits quite a lot of wire thicknesses and bundles from 3/8 inch to 1 inch; 1-1/4 inch hole required for installation
Works great for tubing and air lines