Nauticam N200 180mm Glass Flat Port (40m depth rating)

Nauticam optical-glass dome ports are finely ground to the highest standard of precision and represent the state of the art in both manufacturing and optical technology. Different size ports are available to support a wide variety of lenses and housing types. Port extensions or adapters may be necessary for some ports and housings. This optical-glass flat port has a diameter of 180mm and is part of the N200 port system.

Technical Specifications
Depth Rating: 40m
Port System: N200
Weight: 2.78kg  
Port Diameter: 180mm
Body Material: Anodized Aluminum Alloy
Port Material: Optical Glass
Port Coating: Multi-layer Broad-band Anti-reflective Coating Inside   
Removable Port Shade     
Spare O-ring