20mm closures thread directly onto glass containers featuring 20/400 GPI neck finishes. Matching thread pitch and neck height creates an airtight barrier that preserves pre-roll moisture content and terpene profiles.

To source compatible glass bodies, explore our dedicated 20mm 20/400 Pre-Roll Tubes Collection, and verify neck dimensions against technical specification tables inside each product listing.

• PE-Lined Dome Caps: Polyethylene foam liners provide airtight compression sealing against smooth glass tube rims.
• Pressure Seal Caps: Torque-activated liners adhere directly to glass rims upon application, creating immediate physical sealing.

Yes, 20/400 child-resistant caps utilize push-and-turn locking mechanisms that fulfill state dispensary compliance laws. Interlocking inner and outer cap shells require downward force with counter-clockwise rotation to unseat closures.

Review state-specific retail closure mandates using our State Compliance Regulations Guide.

Inventory ships directly from our Sacramento warehouse so clients can access single units, standard split packs, or master wholesale cases without minimum constraints. Direct warehouse dispatch eliminates long factory lead times and keeps commercial packaging lines operating continuously.