This Instrument Hole Adapter allows you to replace an unused 4" gauge with two new 1-1/8" style gauges. Installs by placing the face plate in front of the dashboard then inserting the socket/meter in the hole with the washer behind. The assembly is held in place by the socket/meter nut for a clean finished look. Constructed of UV resistant injection molded nylon.
| F | 1/8" |
| Brand | Sea-Dog Line |
| A | 3-3/4" |
| B | 1-3/16" |
| C | 3/16" |
| D | 3-3/8" |
| E | 1-1/16" |