Weck Rubber Ring for RR40, pack of 10

Weck rubber rings for airtight preserving

These red Weck rubber rings in size 40 mm are made from natural rubber specifically for Weck RR40 jars. A pack of 10 provides durable seals that ensure a perfect airtight closure on your preserving jars, which is essential for successful canning and long-term storage.

Ideal for homemade pickling, preserving fruit, vegetables, and other foods in Weck RR40 jars.

Reliable seal for safe preserving

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

Long service life and optimal fit

With a diameter of 39x55 mm, these rings fit precisely onto the RR40 jars from Weck. The natural rubber material provides the right degree of 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 extends their service life and ensures they remain elastic and functional for many preserving projects.

Technical specifications

The rubber rings are made from thermoplastic natural rubber in a distinctive red colour that makes them easy to identify. Each pack weighs 24 grams and contains 10 rubber rings. Please note that jars, lids, and clamps are sold separately, so you can assemble exactly the quantity you need.

With Weck rubber rings you get:

✓ Reliable airtight seal for safe long-term storage

✓ Perfect fit for RR40 jars from Weck

✓ Durable natural rubber material for repeated use

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

Frequently asked questions

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

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, cracking, or loss of elasticity. Always inspect the rings before use to ensure an optimal seal.

AI has contributed to this text and we therefore reserve the right to correct any errors.