The gate comes with a food grade rubber O-ring for your container to fit against,

This all-plastic honey gate converts a regular bucket into a bottling bucket! Or, add to a honey extractor to make straining your honey a breeze!
Superior food grade plastic and nylon material.
Suitable for food, especially for honey.
Stainless steel screws — durable and it’s design also assures a good seal with the bucket.
Threaded barrel — can be fitted into a suitably sized hole