1 Hole Tapered Rubber Laboratory Stoppers, Bungs, Plugs

1-Hole Tapered Rubber Laboratory Stoppers are available in multiple sizes (2–8) and three materials:

• Black – SBR/Neoprene/EPDM blend (standard stock)
• Translucent – Silicone (available by request)
• Green – Neoprene (available by request)

Holes are approximately 5–6 mm in diameter. Also available in solid and 2-hole styles.

This listing covers 1-hole black stoppers currently in stock. For silicone, neoprene, or other styles, please contact us. See our Sizing Chart for dimensions and minimum order quantities.

Contact us for bulk pricing.