How do two flavour vapes like the WGA Crystal Plus 20000 work, and does the taste really switch?

Two flavour vapes work by holding two liquids in one device, with a slide, switch or twist that decides which one you draw from. The taste does change when you move it, but how cleanly it changes depends on the build, and most of what we know comes from maker descriptions and reviewer reports rather than lab tests.

To keep this practical, the guide uses the WGA Crystal Plus 20000 as a worked example. Its listing describes a 2 in 1 sliding mouthpiece with a Flavour A and a Flavour B, a 2ml prefilled chamber, a 650mAh battery and up to 20,000 puffs. We treat every figure as a listing claim, not a tested result.

What is a two flavour vape?

A two flavour vape carries two flavours in one device, so you can switch between them without changing anything. There is no single standard design, and the builds differ quite a lot:

•  Some use two prefilled pods or liquid chambers in one body, with a part that selects one of them

•  The Reign Bar Palette, reviewed by Vaping360, is two full halves joined by magnets, each with its own coil, tank and battery

•  Elfbar's DUAL10K, covered by Wholesale Manager in February 2025, is described as having two 1ml prefilled pods, each paired with a 5ml container

So check how the maker builds the device before you buy. For comparison, you can browse the range of prefilled pods to see standard single flavour formats.

How does a sliding mouthpiece switch flavours?

The listing says "Slide the mouthpiece, switch the flavour", and its specifications call the device a 2 in 1 sliding mouthpiece. It also lists a dual mesh coil and draw activation, so there is no button to press.

The page does not explain what happens inside, so this is a general picture, not a confirmed description. In many dual designs, each flavour may have its own chamber and airflow path, and moving the mouthpiece lines your draw up with one of them. The listing does not say whether the dual coil means one coil per flavour, so ask the supplier how the two chambers are separated.

Does the taste really switch?

In principle, yes. If the flavours sit in separate chambers, the one you draw from is the one you taste. Vaping360's reviewer of the Reign Bar Palette said some flavours are very good, a couple are just okay and none are bad, and reported no leaks, spitting or dry hits.

The harder question is whether a trace of the first flavour lingers after you switch. None of the sources we read answers it. The Wholesale Manager article on the Elfbar DUAL10K does not say whether the flavours mix, so treat claims of a perfectly clean switch with caution.

A few things may help you tell the flavours apart:

•  Flavour pairing: fruit with menthol is easier to tell apart than two similar fruits

•  Pause between switches: a few seconds or a sip of water may let your taste buds reset

•  Draw length: shorter draws may give a more defined taste than long, heavy ones

What does the listing say about this device?

Here is what Vape Spot Wholesale lists for the box of 10:

•  Puffs: "20000+" in the features and "up to 20,000" in the specifications, a maker's estimate

•  Liquid: a 2ml prefilled chamber, described as TPD compliant where applicable

•  Battery: 650mAh, USB Type C, full charge in around 45 minutes

•  Coil: dual mesh, draw activated with no button

•  Flavours: a mixed box, with about 25 pairs in the dropdown, such as Triple Mango with Kiwi Passionfruit Guava

•  Price: £38.75 for the box, against a regular price of £64.99

The page has some gaps. It does not state the nicotine strength and says to confirm 0mg or 20mg variants with the supplier. The features mention 50+ flavours, but the lists show fewer pairs. It also calls the product both a prefilled kit and a single use style device, and says the liquid is not refillable and the device should be disposed of once it runs out. That matters for the rules below.

How can you get the most from a two flavour vape?

Dual designs add a slider, so keep it clean and avoid forcing it. The listing's storage advice is a good starting point: keep the device at room temperature, between 15 and 25°C, upright in its original packaging and out of prolonged direct sunlight.

These habits may also help:

•  Choose a contrasting pair if you want the switch to be obvious

•  Charge the device before it runs flat, since flavour may fade on a low battery

•  Keep it away from heat, such as a car dashboard

•  Stop and check the mouthpiece if you notice liquid on it

Do two flavour vapes have to follow UK rules?

Yes. A second flavour does not change the law. Nicotine containing vapes in the UK are limited to 20mg/ml, tanks and pods to 2ml, and a single refill container to 10ml. They must be notified to the MHRA, and a product may not be supplied until its notification has been published. The MHRA adds that publication does not guarantee the labelling is compliant.

The single use vape ban has applied since 1 June 2025. Government guidance says a reusable vape needs a rechargeable battery, a refillable container (inserting new prefilled pods counts) and a removable, replaceable coil if it has one, with refills sold separately. A rechargeable battery on its own is not proof of compliance, and a retailer listing is not proof either.

The device in our example is described as prefilled with no liquid filling and to be disposed of once empty, and its listing does not mention MHRA notification. We cannot say whether it meets the rules, so ask the supplier for the MHRA notification details and written confirmation of how it qualifies as reusable. If you prefer a format built around replaceable parts, compare the range of rechargeable vapes and check the same points.

What should you know about nicotine and your health?

Nicotine is addictive, and two flavours do not change that. Vaping can involve health risks, and it is not recommended for people who do not smoke. Nobody under 18 can legally buy nicotine vapes in the UK.

Some people notice dry mouth, throat irritation, coughing, headaches or dizziness, especially if the strength is higher than they are used to. Effects vary, and not everyone will notice them. The listing does not state a nicotine strength, so check the packaging before use, and remember that 20mg/ml is the UK maximum.

If you are pregnant, breastfeeding or have a heart or breathing condition, speak to a doctor or pharmacist before using nicotine. Anyone trying to stop smoking can ask the NHS or a local stop smoking service about approved options. People who prefer to compare strengths in refill form can look at the range of e-liquids, where the same limits apply.

Choosing how to buy once you know the details

Now that you know how a two flavour switch works, what the listing does and does not say, and which UK checks to run, the next step is deciding how to buy sensibly. Whether you are choosing for personal use or keeping a shop's shelves filled, knowing your buying options can save both time and money.

What is the difference between wholesale and retail?

Retail is when you buy one or two items from a shop at the normal shelf price. Wholesale is when you buy in bigger packs, usually boxes, straight from a supplier, so each item costs less. Shops buy this way so they can sell on to customers, and many everyday buyers use it too.

•  Retail: single items, normal shelf price, bought from a shop

•  Wholesale: boxes or bulk packs, lower price per item, bought from a supplier

Why can buying wholesale work out better?

Buying wholesale can save you money and effort, as long as you'll really use what you buy. Here's why it often works out better:

•  Lower price per device: boxes usually cost less per item than buying one at a time

•  Fewer orders: one box can cover weeks or months of use

•  Steady supply for shops: shelves stay stocked without repeat trips

•  Wider choice: more flavours and brands in one place

•  Easy to start small: with no minimum order, you don't have to buy a huge amount

Retail still makes sense if you only want to try one flavour. Wholesale tends to win once you know what you like, or when you're stocking a shop.

Why buy from Vape Spot Wholesale

If you'd like genuine stock from a UK supplier that keeps things simple, Vape Spot Wholesale is a trusted wholesale supplier for both shops and everyday buyers. Orders placed before 3pm on a working day are dispatched by 3pm the next working day. You also get TPD compliant products, free delivery over £250 and a 30 day returns policy. You can read what customers say about the shop on Trustpilot.

Frequently asked questions about two flavour vapes

How does a two flavour vape work?

It holds two e-liquids in one device and uses a slider, switch or similar part to choose which one you draw from. The exact build differs between models, so check how each maker describes it.

Can you taste both flavours at once?

That depends on the design. Some devices are built to give one flavour at a time, while others, such as the Reign Bar Palette in snap mode, are described as letting you use both halves together.

Does the first flavour linger after you switch?

We could not find a source that confirms either way. Taking a short pause or a sip of water between switches may help you judge the taste.

Is 20,000 puffs a real figure?

It is the maker's estimate, usually based on testing with steady draws. Real use varies, so treat it as a guide for comparing devices.

Are two flavour vapes refillable?

Some are built with replaceable pods, while others are sealed. The listing used in this guide describes a prefilled device with no liquid filling, so check the format before you buy.

Does a rechargeable battery make a vape legal?

No. UK rules also look at refillable containers, replaceable coils, separate refills and a published MHRA notification.

⚠️ This product contains nicotine, a highly addictive substance, and is intended for adults of legal vaping age (18+) in the UK. It is not suitable for those who do not smoke, pregnant or breastfeeding individuals, or those with heart or respiratory conditions. Keep out of reach of children and pets at all times.