Rev-A-Motion Double 35 Qt Trash Can. The Rev-A-Motion Double 35 Qt. 4WCBM Series Bottom Mount Trash Can Units are the only units available with the new Rev-A-Motion 8" Soft-Open, 8" Soft-Close slide system. Innovative gas spring assisted shock allows the unit to open smoothly and close softly even under the heaviest use. New design allows for easy 5 screw installation into 1-1/2", 1-5/8", and 1-3/4" face frame sizes as well as frameless cabinets. Minimum Door Opening: 14 3/8". * Lids Sold Separately*