Home / Accessories / 18mm to 18mm Adaptor 18mm to 18mm Adaptor$4.99 Adapter In stock 18mm to 18mm Adaptor quantity Buy now SKU: adapter 19/19 Categories: Accessories, Adapters, Glass Products, Glass Accessories Tags: Under $25, 18mm Product ID: 14344 Description Description 18mm Male to 18mm Male 90º Adaptor