Rubber Stoppers 9 Pack Model 6 Black Lab Plug 33x25x28mm – Enjoyist

Description

Product Overview

Enjoyist presents a meticulously engineered set of nine solid rubber stoppers, model 6, designed to meet the rigorous demands of modern laboratories, workshops, and even home environments. Crafted from premium-grade rubber, each stopper offers a harmonious balance of flexibility and firmness, ensuring a secure seal while resisting deformation under temperature fluctuations and chemical exposure. The dimensions—33 mm at the top, 25 mm at the bottom, and a length of 28 mm—are precisely calibrated to fit standard glassware, flasks, and test tubes, providing a leak‑proof barrier that safeguards the integrity of experiments and processes. Packaged in a compact, lightweight box measuring 5 × 3.66 × 1.3 inches and weighing just under 10 ounces, the set is both convenient to store and easy to transport, making it an ideal choice for laboratories that require reliable, ready‑to‑use consumables on a regular basis.

Usage

These versatile rubber stoppers excel in a wide array of applications. In scientific research, they serve as essential components for sealing reaction vessels, preventing contamination, and maintaining controlled atmospheres during synthesis, titration, and chromatography procedures. Their chemical‑resistant composition makes them suitable for handling acids, bases, solvents, and volatile compounds without degradation. Beyond the laboratory, the stoppers are valuable in household settings for sealing jars, bottles, and containers, preserving freshness and preventing spills. In industrial contexts, they are employed to cap equipment, protect instrumentation, and provide temporary closures during maintenance or calibration activities. The ergonomic design facilitates easy insertion and removal, reducing the risk of breakage or injury, while the consistent dimensions ensure compatibility across a broad spectrum of apparatuses, from small vials to larger flasks.

Why Choose Us

Choosing Enjoyist means selecting a brand committed to quality, reliability, and customer satisfaction. Our rubber stoppers undergo stringent quality control processes, including dimensional verification, material purity testing, and durability assessments, guaranteeing that each unit meets exacting standards before it reaches the end‑user. The use of premium rubber not only enhances chemical resistance but also extends the service life of the stoppers, offering cost‑effective performance over time. Moreover, Enjoyist provides responsive after‑sales support, ready to address any inquiries, replacement requests, or technical guidance you may need. With a proven track record reflected in a 4.4‑star rating from over 90 verified purchasers, our products have earned the trust of professionals across scientific, educational, and industrial sectors. By investing in our 9‑pack, you benefit from a dependable solution that aligns with the highest expectations of precision and durability.

Key Features

• Premium rubber material delivers superior chemical resistance and long‑lasting durability.
• Exact dimensions (33 mm top, 25 mm bottom, 28 mm length) ensure a tight, leak‑proof seal on standard glassware.
• Versatile usage across laboratory, household, and industrial applications for maximum value.
• Compact packaging of nine stoppers provides ample quantity while remaining easy to store and transport.
• Dedicated customer support and hassle‑free replacement policy for peace of mind.

FAQ

What types of chemicals can these rubber stoppers safely handle?

The premium rubber formulation is engineered to resist a broad spectrum of chemicals, including common acids (such as hydrochloric and sulfuric), bases (like sodium hydroxide), organic solvents (including ethanol, acetone, and methanol), and many volatile compounds. While the material offers excellent resistance, it is advisable to avoid prolonged exposure to highly aggressive substances such as concentrated hydrofluoric acid or strong oxidizers, as these may compromise the integrity of the rubber over time.

Are these stoppers compatible with standard laboratory glassware?

Yes. The stoppers are specifically sized to fit conventional laboratory containers, including Erlenmeyer flasks, beakers, test tubes, and round‑bottom flasks that have standard neck diameters. The 33 mm top diameter aligns with common opening sizes, while the tapered design from the top to the 25 mm bottom ensures a secure fit that minimizes the risk of slippage or leakage during experiments.

Can the stoppers be sterilized for reuse?

These rubber stoppers can be sterilized using standard laboratory methods such as autoclaving at temperatures up to 121 °C for short cycles, or by chemical sterilants like ethanol and isopropanol. Repeated high‑temperature cycles may gradually affect elasticity, so it is recommended to inspect the stoppers for signs of wear or brittleness after multiple sterilizations and replace them as needed to maintain optimal sealing performance.

What is the recommended storage condition for the stoppers?

To preserve the material’s flexibility and prevent premature aging, store the stoppers in a cool, dry environment away from direct sunlight and sources of ozone. Maintaining a temperature range between 15 °C and 25 °C and a relative humidity below 60 % will help retain their mechanical properties and ensure they remain ready for immediate use when required.

How does Enjoyist handle warranty or replacement requests?

Enjoyist offers a straightforward warranty policy that covers manufacturing defects for a period of 12 months from the date of purchase. If you encounter any issues related to material quality or dimensional inaccuracies, simply contact our customer service team with your order details and a brief description of the problem. We will arrange a prompt replacement or provide a full refund, ensuring that your experience remains hassle‑free and satisfactory.