The Benchmark Scientific B1001XLE BactiZapper TILT utilizes the same well-proven technology of our original Bacti-Zapper Classic, but with a unique, adjustable head angle that allows for more convenient sterilization. When loosened, the adjustment knob can be shifted upward or downward, resulting in a tilt angle range of 55°. The B1001-XL-E offers an increased chamber diameter of 35 mm, making this product more suitable for the sterilization of larger objects, such as tube mouths or flask necks. Both models feature a lower temperature "standby" setting to extend the usable life of the heating element.