Caplugs Evergreen Tube Caps are designed to fit either 15mL, 30 mL or 50 mL threaded centrifuge tubes. 30 mL caps also fit our 20 mL vials. Each cap features molded-in sealing rings and heavy-duty threads to ensure a tight seal.
- Caps are available in a variety of colors
- 20 / 30 mL version offers a design that features built-in sprocket for use with specimen spork
- Tubes are sold separately