Sea and Sea #30125 Extension Ring 40L
- Dimensions: 129 x 55.5mm / 5.1 x 2.2 inches
- Weight: approximately 234g / 8.3 oz
- Depth rating: 100m / 330ft
- Construction: corrosion-resistant aluminum alloy with alumite coating
- Extends 40mm / 1.6 inches (with port lock)
