The Protank pushed KangerTech to elite status in the vaping industry. For many years it had dominated the clearomizer category with superb performance, ease of use, replaceable bottom dual coils, and corrosion-resistant glass tanks. The Protank 3 was the first in the series to use sub-ohm coils, which sparked a revolution and have now become the atomizer of choice for advanced vapers. With sub-ohm vaping bursting into the scene, Kanger decided to switch its focus on its new Subtank line, relegating the trusty old Protank to collectors' shelves.
For the past year and a half, the Kanger Subtank has been the hottest series in the company's lineup. Last April 20, however, KangerTech announced that it was introducing a brand new product – a modern evolution of an old series that had been sitting on the sidelines for a while.
After taking a long hiatus, the Protank is finally back! The Kanger Protank 4 meshes state-of-the-art vaping technology with the Protank's classic look, and it could very well be the most versatile tank on the market today.
Although the Protank 4 is designed to keep up with the times, it maintains its original roots of being Mouth-to-Lung (MTL) friendly so it can still cater to the needs of ex-smokers and novice vapers.
The Pro-Tank 4 is compatible with most pre-built, disposable coils with higher resistances up to 1.5Ω and as low as 0.3Ω for sub-ohm attys. It also comes with its own RBA deck for those who prefer to build their own coils. With so many options available, the Protank 4 Evolved is perfect for all vaping levels.
The Kanger Protank 4 Kit in Silver includes one 1.5Ω coil which should appeal to ex-smokers who prefer a tighter, cigarette-like draw. Another 0.5Ω ceramic coil has been added for direct lung hitters. After trying both, you can experiment with other types of SSOCC coils built for mouth-to-lung, direct-lung, and temperature control vaping.
The Protank 4 RBA deck is called the RBA Pro – designed for those who do not mind getting down and dirty to create the perfect vape. While other tanks may also offer an RBA option, the device is usually sold separately. Kanger is giving you the RBA Pro for free when you purchase the Protank 4 Evolved.
The RBA Pro is a Velocity-style, two-post deck. KangerTech has pre-installed two Clapton coils to let you vape straight out of the box. Designed for advanced vapers, the RBA Pro can accommodate any build style with a maximum coil diameter of 2.5mm.
Since sub-ohm coils tend to guzzle juice, the Protank 4 is built with a monster tank that can store up to 5ml of e-liquid. That's definitely a plus for those who hate carrying several bottles of e-liquid around.
The Protank 4 Evolved provides airflow control from top to bottom. It also has a unique side filling system with child safety lock. We'll break down all of these innovative features to give you a glimpse of how this awesome tank is going to change your vaping experience.
The Kanger Protank 4 Evolved
Like the previous Pro Tank versions, the Pro Tank 4 by Kanger Tech is a sturdy device made of 100% stainless steel. The original all-glass tube is now reinforced with metal so it doesn't shatter to pieces even if you drop the tank. The middle section has two large Pyrex glass windows so you can still monitor the remaining juice inside.
Including the mouthpiece, the full tank assembly measures 65.5mm in height with a 22mm diameter that fits flush into most box mods.
The Kanger Protank 4 has only three components: drip tip, tank, and base.
Removable 510 Drip Tip
On top of the Protank 4 is a removable wide bore drip tip with a Delrin mouthpiece and stainless steel base, double sealed with thick black O-rings to prevent leaks.
The Protank 4 drip tip is a standard 510 mouthpiece so you can replace it with glass, aluminum or stainless steel versions from your collection.
Right under the plastic mouthpiece is an airflow valve that is fully adjustable. Hold the textured section to grip the ring and give it a twist to open or close the two airflow holes. Keep them open for a more airy draw or shut them close for a tighter draw.
Some may like the drip tip airflow, some may not. If you prefer not to use it, just keep the valve closed or replace it with another mouthpiece.
5ML Tank With Child Safety Lock
Unlike most tanks that can be completely disassembled, the Protank 4 is a one-piece device that cannot be taken apart. The top cap and liquid chamber are fixed together in a seamless sleek tube. Most vapers prefer a completely knockdown tank to make it easier to clean the parts, especially the juice section where gunk can accumulate. Also, you cannot replace the glass if it cracks or breaks. The upside to a one-piece tank is that there is no danger of liquid leaking into your hands. The only opening is at the base which is secured by a double sealed bottom cap.
Child locks have become an emerging trend in tank design as reported cases of accidental nicotine poisoning among toddlers continue to rise. To keep your family safe, the Protank 4 has been designed with a child safety lock on top to make it difficult for curious tykes to access the liquid.
With a hidden fill hole, there's no way a child can accidentally get their hands on the e-juice inside the tank. To fill the Protank 4, you will have to twist the top cap until the red seal is exposed. Pull the top gently to reveal the side fill hole. Grab the textured section and twist the dial to open or close the juice hole.
The unique side-fill system of the Protank 4 Evolved makes refilling easier with no top caps or bottom caps to unscrew. There is also no need to disconnect the Pro Tank 4 from your mod or battery.
One of the benefits of sub-ohm vaping is lots and lots of vapor, but thick clouds also mean your juice drains really fast. The Protank 4 is built with a massive 5ml liquid reservoir so you don't have to keep refilling several times a day.
Bottom Airflow (Adjustable)
The tank is sealed at the bottom with a cap that also serves as the atomizer base.
Around the cap is an airflow ring drilled with Cyclops-style 9mm horizontal slits. The airflow dial doesn't rotate continuously. It has a small stopper that makes it easier to adjust to a specific air hole size. Just twist the valve to adjust the amount of air intake.
The tank base can fit pre-built disposable stainless steel coils as well as the RBA Pro.
Coil Options for Protank 4
The KangerTech Protank 4 is both a clearomizer tank and a rebuildable atomizer.
If you are not interested in coil building and prefer a simple plug-and-play experience, you can use a disposable atomizer head with the Protank 4 Evolved. KangerTech offers a wide range of coils that are fully compatible with this tank, each one created for a specific vaping style.
Although the Protank 4 is designed to compete with more advanced technologies, it continues the long-time Protank tradition of being a Mouth-to-lung (MTL) friendly clearomizer.
SSOCC Coils -
The Protank 4 Evolved kit includes one 1.5Ω stainless steel organic cotton coil (SSOCC) that's perfect for MTL inhales. This atomizer is labeled with a red gasket. Check out our list of other replacement MTL coil heads for the Protank 4 Evolved.
Upgraded Ceramic SSOCC Coils -
Ceramic coils are becoming increasingly popular even for casual vapers. For those who like their vapor strong and warm, Kanger has developed a new series of ceramic coils with sub-ohm resistance. The atomizer head included in the Protank 4 Evolved kit is a 0.5Ω ceramic coil identified by a gray gasket.
RBA Pro Deck -
Sometimes pre-built coils just don't cut it, and the most discriminating vapers can demand a specific warmth level and flavor depth from their vapor. The Protank 4 Evolved helps you find your sweet spot with its very own RBA deck. The RBA Pro designed specifically for the Protank 4 is a Velocity-style 2-post deck that is very easy to build. It has four large juice holes around the deck base and two large airflow holes located directly under the coils. Although most of the marketing materials from KangerTech are promoting the RBA Pro for dual Clapton builds, you can create all sorts of wraps as long as the coil diameter fits the deck.
The Protank 4 Evolved not only includes an RBA deck but an entire DIY kit as well with extra coils, extra screws, extra organic cotton sheet, and an Allen key so you'll have all the tools you need to start building your coils from scratch. It has been pre-installed with two 0.6Ω Clapton coils arranged in parallel configuration so you can start using it even if you do not have coil building experience. All you have to do is add some wick and juice and you're good to go!
KangerTech has clearly covered all of its bases with the Protank 4 Evolved. With a special side fill design that is child-proof and leak-proof, an easy to build RBA deck that can accommodate dual Clapton coils, massive 5ml juice storage, a plethora of compatible pre-built atomizers to choose from, and top to bottom airflow, the KangerTech Protank 4 is the perfect tank for vapers who demand the best flavors and the thickest vapor in an easy-to-use format.
Kanger Protank 4 Evolved Features:
- Stainless steel construction
- Pyrex glass windows
- Side fill design
- Leak-proof tank
- 5ml liquid capacity
- Child safety lock
- Delrin mouthpiece
- Removable 510 drip tip with adjustable airflow
- Mouth-to-lung (MTL) and direct lung (DL) options
- Compatible with SSOCC atomizer heads
- Velocity-style RBA deck pre-installed with dual Clapton coils
- Comes with 1.5Ω MTL atomizer and 0.5Ω ceramic coil
- Atomizer base with adjustable airflow control valve
- DIY kit included
- Non-adjustable gold-plated 510 contact pin
- 22m diameter
- 1.5Ω SSOCC 10W-25W mouth to lung coil (red gasket)
- 0.5Ω ceramic coil (gray gasket)
- 0.3Ω RBA pre-installed with two 0.6Ω Claptons in parallel (orange gasket)
- Material: stainless steel and glass
- Liquid capacity: 5ml
- Threading: 510
- Coil: pre-built SSOCC and rebuildable
- Wick: Japanese organic cotton
- Dimensions: 65.5mm x 22mm
The Kanger Protank 4 Evolved kit includes one Protank 4 device, one 0.5Ω SSOCC (ceramic coil), one 1.5Ω SSOCC (mouth to lung coil), one RBA Pro pre-installed with two 0.6Ω Clapton coils in parallel configuration, two extra Clapton coils for the RBA Pro, a sheet of Japanese organic cotton, and a tool set of extra screws and an Allen key.
Vaper Warning: Sub-ohm atomizers are for advanced users only. Be sure that you have a great understanding and technical knowledge of sub-ohm coils before using.
Sub-ohm coils are designed for sub-ohm atomizers and will only work on mechanical mods or devices that can handle sub-ohm resistances of 0.5 ohm or lower. Do not use short or flat 510 connection on any hybrid or hybrid style device. If you are not familiar or unsure of your device set-up, please do not use a sub-ohm coil.
Do not use OCC Ni200 (Nickel) and Ti (Titanium) coils with non-temperature control devices/mods. If you decide to use your Protank 4 with a nickel or titanium coil head, please make sure that the mod or battery that you are using with the tank is capable of temperature sensing or limiting.
If your EVOLVED Pro-Tank 4 is installed with a pre-built atomizer or rebuild-able deck with sub-ohm resistance, we highly recommend that you use American made e-liquids that contain less than 6mg of nicotine. Sub-ohm atomizers tend to produce a stronger throat hit than low and standard resistance atomizers. Juices with more than 6mg of nicotine could result in a burnt or harsh taste when heated by a sub-ohm coil.