Plexpack’s VacPack VS1 is a robust, impulse sealer that produces hermetically sealed packages on any heat sealable bag up to 12 mil/300 micron in thickness (6 mil/150 micron maximum when gusseted). VS1 sealers provide multistage vacuum and gas flash for softer vacuums and lower residual oxygen levels. The standard model employs two 316L grade stainless steel ejector style vacuum pumps for strong gas and vacuum flows.