Oxebar 4L Keg with Tapping Head Kit

Oxebar Multi-Layer PET Keg – 4L (Hydra Tapping Kit Included)

Keep your oxygen-sensitive beverages fresher for longer with the Oxebar multi-layer PET keg.
While standard PET containers last only 3–4 months, Oxebar’s triple-layer barrier technology extends shelf life up to 12 months, making it ideal for beer, cider, kombucha, soda, and more.

Lightweight, reusable, and compact, the 4L Oxebar keg is perfect for homebrewers who want a portable serving solution — camping, BBQs, parties, or simply fitting a keg into almost any fridge or cooler. Its short 325 mm height even allows dispensing while the keg is on its side.

Key Benefits

• 12-month shelf life thanks to multi-layer oxygen-barrier PET
• Lightweight & reusable – great for travel, events, or small-batch storage
• Compact 4L size – fits most coolers and fridges (even lying horizontally)
• High oxygen barrier – 3× lower gas transmission than standard PET
• Includes Hydra Tapping Kit – ball-lock posts + PRV for easy serving
• Perfect for beer, cider, soda, cocktails, cold brew, kombucha
• Safer than glass – no shattering risk
• Budget-friendly alternative to corny kegs

Dimensions

• Diameter: 155 mm
• Height: 325 mm
• Max pressure: 4 bar (58 psi)
• Max temperature: 45°C

PET Types: What’s the Difference?

Straight PET

Used in soda bottles and basic fermentation vessels. Suitable for 1–2 months before oxygen ingress affects flavour.

Oxebar Blended PET

Polymer-blend PET that improves barrier performance by 3×. Suitable for storing beer up to 3–4 months.

Oxebar Multi-Layer PET (This product)

Triple-layer construction with an integrated oxygen barrier, achieving up to 10–12 months of stability.

What’s Included

• 4L Oxebar Multi-Layer PET Keg
• Standard black cap
• Hydra Tapping Kit (ball-lock post + PRV ports)

Hydrotesting (Recommended Every 2 Years)

To ensure long-term pressure safety:

1. Replace the red PRV with a grey PRV (borrow from a corny keg if needed).
2. Fill the keg completely with water.
3. Pressurise to 6 bar using a CO₂ regulator, pump, or compressor.
4. Hold at 6 bar for 1 minute.
5. Depressurise, remove grey PRV, reinstall red PRV.

Perform at room temperature (15–30°C).