. Features light grey dial, black graduations, and numerals, and white pointer staff. Scratch-resistant curved glass lenses with black, near-flush bezels. For inboard and I/O applications. Sierra Part #61552P.• Light gray dial, black graduations/numerals, white pointer staff• Scratch-resistant curved glass lenses with black, near-flush bezels• White perimeter and blue thru-dial lighting• Sender Code: Requires "D" Near-flush bezel For inboard and I/O applications | Driftwood 2" Water Temperature Gauge in Blue