Using the multi-function accessory hose with the V513 and V553 chamber vacuum sealers
The Accessory hose in the V513/V553 chamber vacuum sealers has a multiple-function end. By gently, by firmly pulling the bell-shaped end from the hose, you can switch between the two configurations.

When vacuuming certain canisters and bottle stoppers or marinating in a canister, use the hose in Configuration 2.
When vacuuming resealable bags and mason jars, use the hose in Configuration 1.