This all stainless adapter blocks the side perforations on the Series 2 Mash & Boil Grain Basket, so you can do small 2½ gallon batches. Get this if you are ordering a Series 2 Mash & Boil, and want to use 7 pounds or less of malt per batch. Not needed for grain bills exceeding 7 pounds.
Note: You will need to remove the handle of your Series 2 Grain Basket to install this which is easy to do. The handle can be put back on the basket once this adapter is installed.