This is a brand new and genuine Terrain hopper head for the 68mm (2.5") round pipe system.
Overall dimensions are 280mm width x 130mm height x 140mm depth
This is a unique product and the product you are matching up to will be stamped using the same code as shown in the item description.
This is now a discontinued system as Terrain no longer manufacture these products and once sold there will be no further opportunity to purchase in the future.