Monticello Greenhouse Premium Package, 8' x 20', Black Finish Premium package includes: the Monticello greenhouse, one side of commercial work benches, interior shade system, programmable watering system and the only greenhouse sink in the industry 4- 2ft x 2ft roof vent with automatic opener Hinged Lockable Double Doors Integrated dual rain water gutter system Expandable - ability to expand greenhouse in 4ft increments as needs grow