tomunderwater 1 Posted May 17, 2022 Used twice. Box included. $300 + shipping. Share this post Link to post Share on other sites
diggy 54 Posted May 19, 2022 Hi Tom, I see that you are selling a 20 mm and want to buy a 30 mm extension. I had the same issue. There is another option https://shop.divingexpress.com/index.php?route=product/product&product_id=3211 https://www.aditech-uw.com/en/shop/4805-nauticam-extension-ring-10-21110.html Just fix to your 20 mm and its good to go. Diggy Share this post Link to post Share on other sites
tomunderwater 1 Posted May 20, 2022 Thanks for the info, Diggy! I may go this route. Share this post Link to post Share on other sites
