Rev-A-Shelf?s ground breaking Soft-Open/Soft-Close Rev-A-Motion? waste containers are now available in an innovative Top-Mount application. The front, side and rear adjustable mounting brackets provide stability and easy installation. These products are constructed of solid maple and available in four sizes, they feature pre-assembled door mount brackets for easy one-step installation. Rev-A-Shelf's top-mount wood waste containers are industry favorites. These waste containers are designed for absolute sturdiness with front and rear mounting, pre-installed door mount brackets and full-extension 150 lb. rated ball-bearing slides for total stability. This unit also comes with Rev-A-Shelf's patented Rev-A-Motion system that not only soft-closes, but soft opens. (US patent: 8,297,722)Features:- 18.25"W x 21.75"D x 21"H-?Included: (2) Silver 35 quart containers with Wood frame and mounting hardware-?Unit requires a very specific cabinet opening-?Unique bracket allows unit to fit in multiple sized cabinets-?Multiple widths available- 150lb Full-Extension Ball-Bearing Slides-?Unique adjustable bracket is designed for 1-1/2", 1-5/8" and 1-3/4" face frame-?Will also work in frameless cabinets with included mounting plate-?Top-Mount Waste containers come in many different widths as they are specific to a cabinet opening to function properly-?17.5" Min opening to 19.75" Max Cabinet opening-?Adjustable door mount brackets are included and required for operation-?Optional Rev-A-Shelf lids available, sold separately- Fully Assembled Maple Wood construction with a clear coat finish for durability ?