This filter flask adapter set includes 6 cone funnels of varying diameters, making it suited for various-sized experimental equipment. A high-quality substance with a smooth and long-lasting surface makes up this adapter for filter flask. Reduce the dangers involved with inserting and removing glass stems via this rubber stopper by using this set alone or nested with neighboring sizes. It guarantees a continuous, leak-free passage of solutions. This adapters for filter flasks are made of a material that ensures the longer-lifespan and sturdiness.