NAUTICAM N120 Extension Ring 90 with Lock (21190)

NAUTICAM N120 Extension Ring 90 ~with Lock (21190)The Nauticam Extension Ring 90 with Lock is part of the N120 Port System and can be used to add 90mm effective length to an N120 Port setup.See Port Chart for more details on choosing the correct extension and port. Technical Specifications Depth Rating150mPort SystemN120Weight0.41kgPort Opening Diameter109mm from SN A173611 and laterPort DiameterBody MaterialAnodized Aluminum AlloyPort MaterialPort CoatingPort Shade MaterialRemovable Port ShadeSpare O-ring90140