N85 Extension Ring 20 accessories - m67-mft-and-compact-macro-optics Depth Rating 100m Port System

Depth Rating 100m Port System N85 Weight Port Opening Diameter Port Diameter Body Material Anodized Aluminum Alloy Port Material Optical Glass Port Coating Port Shade Material Removable Port Shade Spare O-ring 90143 This item is non-returnable

Depth Rating 100m Port System N85 Weight Port Opening Diameter Port Diameter 7" Body Material Anodized Aluminum Alloy Port Material Acrylic Port Coating Port Shade Material Removable Port Shade Spare O-ring 90143 split

like it does on other Nauticam housings

NA-A7 Instruction Manual

N85 Extension Ring 20 accessories - m67-mft-and-compact-macro-optics Depth Rating 100m Port SystemThe Nauticam N85 Extension Ring 20 can be used to add 20mm effective length to an N85 Port System. See Port Chart for more details on choosing the correct extension and port. Technical Specifications Depth Rating 100m Port System N85 Weight Port Opening Diameter Port Diameter Body Material Anodized Aluminum Alloy Port Material Port Coating Port Shade Material Removable Port Shade Spare O ring 90143 split Additional Data: Effective length: 20mm Support