Plastic carboys offer many of the benefits of glass while offering convenience and durability. This food-grade plastic is non-porous and will not absorb flavors and aromas. The smooth surface inhibits contamination and the Clear, colorless plastic allows for visual observation. A plastic carboy is extremely light-weight and provides exceptional durability. Requires #10 rubber stopper (available separately). height: 15. 5in. Width (overall): 9. 0in. Opening (interior diameter): 1. 8in. Opening (exterior diameter): 2. 13in. 3 gallon plastic carboy, country of origin - Canada, manufacturer name - Vintage Shop.