Cylinder Glass with Clear Glass 145ml - 86x52.5mm

Weck rubber rings for airtight preservation

These red Weck rubber rings, measuring 40 mm, are made from natural rubber specifically designed for Weck RR40 jars. With a package of 10 pieces, you receive durable seals that ensure a perfect airtight closure for your preserving jars, which is essential for successful canning and long-term storage.

Ideal for homemade jams, canning fruits, vegetables, and other foods in Weck RR40 jars.

Reliable seal for safe preservation

The rubber rings create a hermetic seal between the jar and the lid when used with Weck clamps. The special design allows steam to escape during the heating process but prevents air from entering afterward. This is key to successful preservation, as it minimizes the risk of bacterial growth and extends the shelf life of your homemade products.

Long lifespan and optimal fit

With a diameter of 39x55 mm, these rings fit perfectly on Weck RR40 jars. The natural rubber material provides the right flexibility and resilience, ensuring a secure seal every time. To maintain the quality of the rubber rings, they should be stored at 15-25°C between uses. This prolongs their lifespan and ensures they remain elastic and functional for many canning projects.

Technical specifications

The rubber rings are made from thermoplastic natural rubber in a distinctive red color, making them easy to identify. Each package weighs 24 grams and contains 10 rubber rings. Please note that jars, lids, and clamps are sold separately, allowing you to assemble exactly the number you need.

With Weck rubber rings, you get:

✓ Reliable airtight seal for safe long-term storage

✓ Perfect fit for Weck RR40 jars

✓ Durable natural rubber material for repeated use

You are always welcome to contact our customer service at web@hw.dk for further information.

FAQ

Can I use these rubber rings for other sizes of Weck jars?
No, these rubber rings are specifically designed for RR40 jars. For other jar sizes, you need to use the corresponding rubber rings in the correct dimensions.

How many times can I reuse the rubber rings?
The rubber rings can be reused multiple times as long as they show no signs of wear, cracks, or have lost their elasticity. Always inspect the rings before use to ensure optimal sealing.

AI has assisted with the text, and therefore errors may be present.