scubazig 1 Posted April 4, 2014 This Sea & Sea 40mm Port Extension Ring 40mm (SS-56111) is in excellent condition, and includes the o-ring. Original owner - original packaging.• Dimensions (DIAxD): 135x56.5mm / 5.4x2.3inch• Weight: Approx. 345g / 12.1oz• Construction: Corrosion-resistant aluminum alloy (alumite coating)$230 - SHIPPING INCLUDED to anywhere in the lower 48. Share this post Link to post Share on other sites
