28 mm pressure regulating bottle screw cap (membrane liner seal)

Vented liner enables airflow and prevents packaging deformations for even the most highly concentrated chemicals

For releasing and consuming gases, temperature differences and altitude changes

Bottles and containers won’t bulge or collapse

Allows bottles and containers to breathe, equalizing pressure and reducing condensation while filtering out liquids and other contaminants

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

   - Permits pressure equalisation and tight sealing

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

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

Cap size: 28-400 , 28 mm

Standard colour: black / white (other colours available on request)

Art. code: HP1183