50mm port extension -B120

Extension ring with 120 mm bayonet to increase the lenght of the housing's port by the mentioned measure and allow the use of different lenses.

• Port extension;
• 2 O-Ring seals;

• Black anodized anticorodal aluminum;
• Double O-Ring seal;
• Max depth 100 metres;

• AS599 - Replacement O-Ring Set;