The Vitamix 015082 is a compact sound enclosure housing designed specifically for the non Twist Lock The Quiet OneĀ® blenders manufactured prior to July 2020. Constructed from durable copolyester, this back cover effectively reduces noise during blending, creating a quieter kitchen environment. Its compact design ensures a snug fit, enhancing the overall performance of your blender while maintaining a sleek appearance. Ideal for commercial settings, this sound enclosure helps improve customer experience by minimizing sound disruption.