Rubber Flask Sleeves


Securely seal perforated flasks and prevent investment overflow with durable, re-usable flask sleeves. Slide this flexible, high-quality rubber sleeve over perforated flasks to seal the openings before investing and remove it before burnout.

  • Country of origin : Taiwan

Please Note:

• The color of the rubber for sleeves and extenders may vary from what is shown here.

Catalog page: 2020-2021 Tools and Equipment Catalog p.652