38 mm closure with ratchet band for bottle, canister and container

Membrane cap for packaging which permits pressure equalisation

Enables airflow and prevents packaging deformations for even the most highly concentrated chemicals

For releasing and consuming gases, temperature differences and altitude changes

With tamper-evident ring (ratchet) 

Cap size: 38 mm

Cap height (including TE-ring): 22 mm

Sealing: degassing / aeration membrane liner (cap thread venting)

   - Closure allows two-way venting for either pressure or vacuum relief

   - Permits pressure equalisation and tight sealing

   - Only allowing air and gas molecules to pass through the membrane

Standard colour: white (other colours available on request)

Art. code: HP1172