The accessory hose is designed to fit Food Saver Vacuum sealers and has a fitting that attaches to Food Saver jar sealer lids.
If you have another brand of vacuum sealer that has a hose port fitting, you should be able to use this hose on it, although sometimes it may need some modifications or you may need to attach it to the hose that comes standard with your vacuum sealer.
For the EziVac vacuum sealer, you remove the white suction cup at the end of the standard accessory hose by pulling it off the hose. The Food Saver Accessory hose then just plugs into the end of the hose.