Rev-A-Shelf Double 50 Quart Pullout Waste Container, Silver (2) Silver 50 quart waste containers with Brushed Aluminum frame and mounting hardware. 150lb Full-Extension with Rev-A-Motion Soft-Close slide system (US Patent #8,091,971). Rev-A-Motion provides a soft-open/soft-close feature. . Full-height base cabinet required..Designed for a 21" cabinet with a 15.75" opening.