GL45 square media bottles o.d.:56 mm (approx.) scott 网页scott GL45 square bottles for storage-Analytical Testing Vials. Quantity: Description Heavy duty 5,000mL (5 liter) borosilicate Schott® glass media bottles can be used for storage as well as mixing and sampling. GL45 Closures are liner-less, one-piece autoclavable polypropylene.