Can be used with Presto Dehydro Food Dehydrator model numbers 0630001 0630102, 0630203, and 0630302 Expand the capacity of your Presto dehydrator. Add up to 6 trays; number of trays varies by dehydrator model. Potential space savings of over 50% when all 12 trays are used. Package contains 2 Add-on Nesting Dehydrator Trays.