Filler Plates do the job.
These do what they should. They fill up the space in my Vacmaster VP112 chamber vacuum machine. They can be used individually or together depending on the height of what you are sealing.
VacMaster® Filler Plate Set for VP112 Series Chamber Vacuum Sealers. Filler Plates help reduce the time it takes to vacuum package. The Filler Plate Set helps take up space, allowing the pump to not have to work as hard. Includes one 9 3/8" x 8 1/8" plate, one 11" x 9 1/2" plate and one 11 7 /8" x 9 1/2" plate. Compatible with VP112 and VP112S set of 3.
These do what they should. They fill up the space in my Vacmaster VP112 chamber vacuum machine. They can be used individually or together depending on the height of what you are sealing.
These are a great accessory to help prevent spills and lessen the time it takes to evacuate the chamber. Used to use a large book, these are much nicer.