Product description
This white rubber bung cork with a 32 mm diameter delivers a perfectly airtight seal for 5 L demijohns—whether you’re using a swing-top cap or a plain neck—thanks to its central vent hole and attached lock-cap. Moulded from premium, food-grade rubber, it flexes for a secure, leak-proof fit, while the precisely drilled aperture accepts standard airlocks to release fermentation gases without admitting contaminants. The snug-fitting cap seals the vent when not in use, and the smooth, non-porous surface ensures effortless installation and quick cleaning for repeat performance batch after batch.
- Integrated vent hole: Central aperture for airlocks or fermentation fittings, ensuring safe gas release and contamination control.
- Lock-cap closure: Snug-fitting cap seals the vent when idle, offering versatility between brewing cycles.
- Durable & flexible: Food-grade rubber moulding conforms to your demijohn neck for a reliable, leak-proof fit.
- Hygienic & easy to clean: Smooth, non-porous surface allows quick sanitisation and maintenance.
- Ideal compatibility: Specifically designed for our 5 L demijohns, with or without swing-top caps.
Specifications
| Brand | COMERCECORE |
|---|---|
| Product type | Rubber Bung |
| Pack Size | 1.0, 2.0, 4.0, 6.0, 8.0, 10.0 |
Product Information
Find everything you need to know about this product, including shipping, warranty and return information.
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Delivery is free on every UK order, with no minimum spend.
Orders placed before 12pm, Monday to Friday (excluding UK bank holidays), are usually dispatched the same working day. All paid orders are dispatched within 2 working days.
Standard delivery takes around 1 to 3 working days after dispatch, depending on the courier. We send orders with Royal Mail, Yodel, Parcelforce, DPD or UPS, depending on the size, weight and destination. Larger items may arrive in more than one parcel. Tracking details are emailed once your order is dispatched.
We deliver to England, Wales, Scotland (including supported regions and islands) and the Isle of Man. We cannot deliver to Northern Ireland, the Channel Islands, BFPO addresses or PO Boxes. Please check your address and postcode carefully at checkout.
Every product is covered by your statutory consumer rights: it must be of satisfactory quality, fit for purpose and as described.
If an item arrives damaged or develops a fault, email info@comercecore.co.uk with your order number, a short description and clear photos. Please wait for our reply before sending anything back.
Within 30 days of delivery you can reject a faulty item for a full refund. After that we will repair or replace it, or refund you if that is not possible. Where an item is faulty, we cover the reasonable cost of returning it.
Where a product comes with an additional manufacturer warranty, the details are shown in its description. Damage from misuse, incorrect installation, wear and tear or modification is not covered.
You can return most items within 30 days of delivery if you change your mind. Please email info@comercecore.co.uk with your order number before sending anything back, and we will confirm your return and send the returns address.
Items should be unused, unaltered and in a condition we can resell. For change-of-mind returns you pay the return postage. Products you have cut, installed or modified (for example a pond liner cut to size) cannot be returned for a change of mind.
Please include your order number and name inside the parcel. We refund within 14 days of receiving the return, to your original payment method.
None of this affects your statutory rights. Read our full Refund Policy
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