Kimax Raysorb Borosilicate Glass Class A Heavy Duty Wide Mouth Volumetric Flasks with PTFE Stopper, +/- 0.30ml Tolerance, 1L Capacity (Case of 6)

Choose RAY-SORB® processed, KIMAX® flasks for your light-sensitive contents. These heavy-duty, wide-mouth flasks are available with glass, PTFE or PE stoppers or buy only the flasks if you already have stoppers on hand. RAY-SORB processed flasks protect contents from short-length light waves. They are made from KIMAX KG-33 borosilicate glass, the same as our clear flasks, and then RAY-SORB processed to protect your light-sensitive contents.

• Pipet access is easy with wide-mouth volumetric flasks
• Superior strength, durability and safety from heavy, uniform walls
• Quick identification with large, permanent, easy-to-read, markings
• Flat interior bottoms for stirring with standard stir bars
• Accuracy - graduated to Class A volumetric tolerances