Faria Chesapeake White SS 2" Cylinder Head Temperature Gauge (60-220°F) Oral inflation/deflation valve easily accessible

Oral inflation/deflation valve easily accessible for adjusting buoyancy

A: (inch) 5

It also comes in the classic round version: go for your style

Used on most Mercury Verado and Optimax

Faria Chesapeake White SS 2" Cylinder Head Temperature Gauge (60-220°F) Oral inflation/deflation valve easily accessibleChesapeake White SS 2" Cylinder Head Temperature Gauge (60 220F) Perimeter lighted White dial with stylish Blue and White graphics, polished stainless steel bezel, contoured White pointer and domed glass lens. A temperature gauge operates by sending a low amperage current through the gauge's meter to the ground via a sending unit with variable resistance. The resistance of the sending units increases or decreases with the changes in pressure,