Armerah 28.5mm RDA Top Cap e-cig Mouthpiece Heatsink/Stainless Super Wide Bore

As low as £6.99
In stock
A true wide bore vaping experience making it the ultimate top cap for cloud chasing, made from tough stainless steel with integrated heatsink.

This RDA top cap has a super wide 18.5mm (3/4") bore all the way through for a true wide bore vaping experience. It provides an amazingly smooth draw with no loss of suction giving insane airflow making it the ultimate top cap for cloud chasing and expert chuffers. It's made from high quality stainless steel which is virtually indestructible with good chemical inertness and easy to clean, a superb vape is guaranteed. Built into the cap is a four fin heatsink which cools your vapour, ideal for sub ohm and high power vapers.

This product is only suitable for 28.5mm rebuildable dripping atomisers (RDAs) which have a removable chuff or top cap, it replaces the entire top part of your compatible RDA including the drip tip. Easy to fit and supplied with a new single seal.

Fitting Instructions

Please wash thoroughly prior to use, then remove your old top cap and push on your replacement firmly until fully seated.


  • Total height: 25mm including connection
  • Tip diameter: 22.5mm
  • Bore diameter: 18.5mm throughout (super wide bore)
  • 28.5mm RDA connector - 26.5mm diameter x 4.2mm depth

PLEASE NOTE: These caps are precisely manufactured to suit standard RDA connections but due to manufacturing variations in some atomisers and tanks, especially clones, there can be occasional fitting problems. If this should be case then please return the product unused and in it's original packaging for a refund.

Nicotine Free.

More Information

We have three options for deliveries within the UK:

Our SUPER SAVER service is FREE by Second Class Royal Mail for order values over £10 or charged at £1.99 for orders below £10. The estimated delivery time is 3-14 days.

Our EXPEDITED service by First Class Royal Mail is £2.99 per order and the expected delivery time is 2-5 days.

Our PRIORITY next day service by Royal Mail Special Delivery is £6.99 per order. A tracking number will be sent to you by email when dispatched and the delivery time is next working day by 1pm for orders received before 2pm.


INTERNATIONAL orders for delivery outside the UK are sent by Royal Mail International Signed For or International Airsure depending on your country. The charge is £6.99 per order within the EU and £8.99 per order to the rest of the world. A tracking number will be sent to you by email when dispatched and the expected delivery time is 5-14 days.


We aim to dispatch all orders placed by 2pm GMT on the same working day.

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Disclaimer: Electronic cigarettes are a smoke free alternative to traditional tobacco products. They have not been medically evaluated as pharmaceutical products and cannot be sold to persons under the age of 18 years. They are not a smoking cessation product nor a nicotine replacement therapy (NRT). Some e-liquids contain nicotine which is an addictive substance. Do not use if you are pregnant or allergic to any of the ingredients, if in doubt please consult your doctor. We are not a pharmaceutical company and we do not produce medical products.

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