Drop-Shipped Add to Cart Compare Vitamix 15585 Retainer Nut for Advance Container Vitamix MSRP: $43.71 Now: $25.99 Contact us for expedited shipping options. The Vitamix 15585 Retainer Nut ensures your blade assembly is fitted tightly onto the Advance Container. What's in the box? Vitamix 15585 Retainer Nut for Advance Container MSRP: $43.71 Now: $25.99 Add to Cart Compare Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: $43.71 Now: $25.99 Subtotal: Add to Cart