Replacement Bottom Gasket for VacMaster® PRO110 Vacuum Sealer. The bottom gasket ensures a constant vacuum and complete air removal. Overtime this part may become worn out, keep a replacement on hand so your vacuum sealer never goes down. Easy installation for this direct replacement part. Bottom Gasket is located on the base of the sealer, not the lid portion. Compatible with VacMaster PRO110 Vacuum Packaging Sealer only.