Chapman Brewing Equipment 7 Gallon Stainless Steel UniVessel Brew Fermenter Pressed gallon markings Easy to clean Perfect for 5 gallon batches with plenty of head space 12" inner diameter, 16" height (14" diameter at widest point and 20" height including ball valve and airlock) *Assembly required (See instructional video here: https://www.youtube.com/watch?v=7amtyNzHz5c)