These Commercial Vacuum Sealers are commercial grade vacuum sealers. Meaning they are designed to work hard, they can be used contiuously and will all go to around the 90Kpa. They all have liquid traps and either double or triple sealing bars. If you have a lot of vacuum sealing to do or are in a commercial kitchen these are the models to have. Our commercial vacuum sealers are supplied by Sico (Italy) and Status (Slovinea). We carry spare foam seals and heat strips for all models and we can sercice these machines should something go wrong. All our commercial vacuum sealers carry a 2 year warranty. Dont be fooled by cheaper machines that call themselves commercial quality and are not.