The Instaflow O Pro Pod 15k in Sour Blackcurrant is the replacement unit that keeps your O Pro battery alive. It renews the entire liquid-carrying section along with the atomiser head, so you only swap the flavour-and-coil module instead of discarding a whole disposable.

On the flavour front, blackcurrant takes centre stage: deep, dark and fruity, with a pronounced sour edge that gives the variant its name. That tartness makes the cassis aroma lively and full of character, while the fresh mesh coil keeps the taste clean and even right from the first puff.

Operation stays simple: click the 10 ml refill reservoir into the pod, set the whole thing into the battery and wait a moment for the wick to saturate. Then you're good to go, no open bottles, no spills. That makes the unit ideal for anyone who wants to keep their O Pro and switch flavour on purpose.

• Flavour: Sour Blackcurrant, blackcurrant with a tangy note
• 2 ml pre-filled pod plus 10 ml refill reservoir (12 ml total)
• Fresh mesh coil with every change
• Click-&-Go system instead of liquid bottles
• 20 mg/ml nicotine salt
• Compatible only with the Instaflow O Pro battery

For fans of intense, tangy berry flavours this refill is spot on, you can buy the Instaflow O Pro Sour Blackcurrant with ease in our vape shop.