Rubber Stopper #02 Drilled 3 per Pack (25/32 x 5/8 x 1 in | 20 x 16 x 25 mm)

Rubber Stopper #02 Drilled 3 per Pack (25/32 x 5/8 x 1 in | 20 x 16 x 25 mm)

Regular price
Sold out
Sale price
Unit price
Shipping calculated at checkout.

Rubber Stopper #02 Drilled: Precision Drilled Sealing Solution for Specialized Uses

Efficient and Customizable Seal for Versatile Applications 

Introducing the Rubber Stopper #02 Drilled, perfectly manufactured in the USA from high-quality rubber and precision-drilled to accommodate various tubing needs. This stopper is ideal for laboratory use, home brewing systems, or any setting requiring a customizable, leak-proof seal to facilitate experiments or processes involving gas or liquid transfer.

The Rubber Stopper #02 Drilled offers an optimal size of 13/16 x 5/8 x 1 inches (21 x 15.8 x 25 mm), making it highly effective for small to medium-sized containers that need a tight seal with the added functionality of a drilled hole for tubing insertion. Its design ensures that it can maintain the integrity and cleanliness of your setups by preventing leaks and contamination while allowing for controlled substance passage.

Key Features:

  • Material: Made from durable, high-grade rubber for superior sealing performance.
  • Size: Accurately sized at 13/16 x 5/8 x 1 inches (21 x 15.8 x 25 mm).
  • Drilled Design: Features a precisely drilled hole to accommodate standard laboratory tubing.
  • USA Made: Proudly produced with exceptional American craftsmanship.
  • Versatile Usage: Ideal for labs, home brewing, and any setup requiring a customizable sealing solution.
  • Reliable Sealing: Provides a dependable, leak-proof barrier.
  • Reusable: Built to be used multiple times, retaining effectiveness and flexibility.
  • Adaptable Fit: Suitable for a range of small to medium-sized bottle and flask sizes.
  • Quality Assurance: Rigorously tested and manufactured in the USA to ensure the highest standards.


Q: What size tubing fits the drilled hole in these stoppers? A: The drilled hole is designed to fit standard laboratory tubing, generally accommodating sizes commonly used in experiments and brewing setups.

Q: Can these stoppers withstand autoclaving or sterilization? A: Yes, these stoppers are made to withstand standard sterilization processes, including autoclaving, making them suitable for repeated use in sterile environments.

Q: Are these drilled stoppers suitable for continuous pressure applications? A: While they provide a secure seal, checking specific pressure ratings and compatibility with your particular use case is important to ensure safety and functionality.

Q: Is the rubber material of these stoppers safe for long-term contact with consumables? A: The high-quality rubber is generally safe for contact with food and beverages, provided all relevant safety and compliance standards are followed.

Opt for our Rubber Stopper #02, Drilled for your specialized sealing needs, where customization and precision are key. This stopper ensures flexibility and reliability for any application requiring an effective seal with the capability for tubing integration.