The Commercial Blender Parts by Blendtec: Vented Gripper Soft Lid, square clear insert, (no sound enclosure required), flexible rubber lid with center opening, black, fits both Wildside+ & Fourside jars ( Blendtec - 40-303-SRV )
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.