These dry hoppers are designed to fit into Better Bottle fermenters. They are 1.5" x 16" and include a #8 3/8" drilled rubber stopper on one end. We recommend using up to 3-4 ounces of pelletized hops. 

See the options to add additional dry hoppers at a discount and be sure to add some PBW for cleaning if you do not already have some among your cleaning products.

Please note that repeated use of this dry hopper may cause scratching over time.  Such is the nature of a PET fermenter, but this is likely no different than the scratching that occurs using a brush to clean the vessel.