We have designed the easiest to install bulkhead you can get. just drill a 2 3/4 inch holes. This fitting sandwiches the metal, and protects your wiring from damage., no additional holes. We use a high temperature material that is also chemical resistant making it ideal for under hood applications. We offer this as a single holes or 2 holes. Single holes measure 28mm and 2 holes measure 28mm and 19mm. shipping is included.
