SMACO S300Plus Scuba Tank for Diver Mini Diving Tank

(15 customer reviews)

SMACO 0.5l Mini Scuba Tank, Portable Mini Dive Cylinder with 5-8 Diving Minutes Capability, Corrosion Resistant Material, with Constant Pressure Valve, Refillable Pony Bottle for Emergency Backup

$149.99 From: $149.99

  Worldwide Shipping | Calculated at checkout
  Secured Checkout | Safe and Secure
  Live Chat | Let’s Talk - We Can Help!
  CE / DOT Scuba Tank Certified
  After-sales | Returns Policy of 30 days

SMACO S300PLUS 0.5L Mini Scuba Tank

 Brand    SMACO Type    S300 PLUS
 Color    Green Black N.W    1.1kg
 Using time    6-10 minutes Size    36 × 7.6 × 8.9cm
 Material    6061 Aviation Aluminum Capacity    0.5 L
 Max working pressure     3000psi/200bar/20Mpa Surface Technology     Hard oxidation + Plastic spraying
 Breathing valve thread     M18×1.5 Output way    Constant pressure is about 1Mpa
 Inflatable male     8mm Breathing times     (Calculated at 0.5L per breath) About 340 times
Mini Scuba Cylinder: breath simply and differently underwater!

This 0.5-liter mini diving bottle allows you to breathe underwater for 6 to 12 minutes.
Perfect if:

  • Do you need to dive underwater for a few minutes? This mini scuba diving tank is the solution.
  • For the owner who needs to unanchor or inspect the hull.
  • You are a snorkeling lover, a fun explorer of the underwater world, you will get a kind of enjoyment!
  • You are an experienced diver, if you misjudge your level or worse an air failure, this mini diving bottle will be used as a spare tank!
smaco s300

We knew that people use mini scuba tanks for recreational diving, yacht maintenance, lobstering, treasure hunting, fossil hunting, etc. … There are so many SMACO feedback videos from all over the world. If you are a professional diving enthusiast or a diving beginner, don’t hesitate to get your spare diving artifact.

The advantages of SMACO S300+ VS S300:

1. The external explosion-proof valve has higher explosion-proof accuracy and safety.
2. Increase the decompression chamber, which can keep the air pressure constant, and the air outlet is more stable and smooth.
3. Standard anti-lose rope
4. The air pressure is controlled at about 15KG, which greatly reduces air waste and increases the length of use by about 20%:

  • S300 Available Time: 5-10min(Depending on the water layer)
  • S300+ Available Time: 6-12min(Depending on the water layer)
The advantages of SMACO S300+ VS S300

Compact & Portable

Perfect size for stage, bailout. Smaco scuba diving tank doesn’t add any drag even if you have to carry the tank a long way, which net weight is 1.15kg. Our diving tank gives you great access to the valve and regulator and allows you to hand it over to your buddy in case of emergency. Smaco pony bottles are easy to use, with their own sophisticated compact regulators. Its compact size makes easier to carry and helps you capture the freshness of the air wherever you need it.

Compact & Portable mini scuba tank s300plus


– Compact portable lightweight, easy to carry.
– Breathe underwater diving with total freedom.
– Supports 3 types of inflation.
– Made of aviation aluminum material and meets manufacturing standards of diving equipment.

portable s300plus scuba tank, easy to carry.

Three Ways to Inflate

Three Ways to Inflate for smaco s300plus mini scuba tank

Diving for entertainment, Diving for training Spare tank diving air.

Diving for entertainment, Diving for training Spare tank diving air.
Smaco S300Plus diving tank Certifications


Weight N/A
Dimensions N/A

Orange, Green, Black


F, A, B, C, D, E


15 reviews for SMACO S300Plus Scuba Tank for Diver Mini Diving Tank

  1. Thien K Nguyen (verified owner)

    Portable and easy to use

  2. D Ramos (verified owner)

    Takes a bit to hand pump it to pressure but it is exactly what is described. Spare air for in case of emergency

  3. Teresa Carter (verified owner)

    Got this for a trip with my son. We like to dive and plan on using this regularly. I’m impressed with the design and the weight (super light) but the pump amazes me. The tank pumps up fairly easily, but takes a bit of time to do it. It’s not just a few pumps of air and ready to use. We have two tanks and to get them to about 2000 psi (to give enough time in the water) it took about 10 minutes and multiple trade offs pumping each bottle. Not sure how that’s going to work on the beach but we’re giving it a shot.

  4. Justin (verified owner)

    works well , does exactly what it needs to.. it takes a very long time to charge it up. about 15 minutes of pumping to fill up completely.

  5. JamieLynne03 (verified owner)

    Seems like a really good tank and can’t wait to use it!

  6. miles king (verified owner)

    Worked great for me! The tank is light and easy to swim with. I purchased a scuba tank to refill with and it is way easier than a pump. Highly recommend it. My daughter and I use them regularly and enjoy them very much. It seems well built and have had no issues thus far. Will update if anything changes. I have purchased two of these and they have worked well. I would buy this again. Enjoy.

  7. Misc (verified owner)

    I was really excited about getting this to clean the bottom of my boat. It’s tough having to constantly come up for air and it takes twice as long to do so, this this tank is perfect to get it all done in about 10 minutes. The tank is heavy duty, but lightweight enough to be portable, easy to fill, and does exactly what it says it will. Highly recommend for quick underwater jobs.

  8. Devan (verified owner)

    Remember as a kid thinking about how cool it would be to just vibe at the bottom of the pool with a scuba tank? Well here ya go!
    What I liked:
    excellent build quality, does what it’s supposed to, and you can take it anywhere and pump it up when you wanna use it
    What I didn’t like :
    Those reviews talking about how hard it is to pump it are NOT JUST BEING DRAMATIC! Even if you have decently toned biceps you’ll still find yourself needing a minimum of 3 or 4 breaks before it’s full, another thing I don’t like is the pump, it just seems kinda jenky and like it’ll break after a while idk.

  9. chris jackson (verified owner)

    I am very impressed with the quality of the tank and the regulator. I did have to take it to my local dive shop to have it filled so I would suggest that you buy the filling station if you plan on filling it yourself.

  10. Hinkydoo (verified owner)

    Good tank. These were originally designed as an emergency backup to the main tank when scuba diving and now they’re available tot he public. You have to do your research first and can’t dive down more than a meter or so without risk but they’re fun for looking underwater for a longer time. I like that it’s refillable with a pump or air compressor.

  11. M.Cristina (verified owner)

    Ho comprato da poco Smaco mini scuba tank 300, per ora do 5 stelle anche se l’ho usato una sola volta, tutto senza problemi, per chi non é impedito nel comprendere come assemblarlo è molto semplice ed intuitivo.
    Per quella volta che l’ho usato mi sono trovato molto bene, è magnifico!!
    Per caricarlo col gonfiatore bisogna starci un bel pó ed è molto stancante, ma tutto ció è normale, basta immaginare che voi state caricando aria compressa a mano invede di usare un compressore, a tutti quelli che hanno recensito negativamente questo aspetto e se ne sono lamentati, non li capisco!, per caricare una bombola con gonfiatore, cosa vi aspettavate!!! Se comprate l’adattatore che ricarica da bombola è tutto più semplice immagino non ci vorrà nulla, io l’ho preso, ma ancora non ho provato a ricaricarlo da altra bombola, ma immagino che sia un gioco da ragazzi, basta non superare i bar consigliati daltronde anche col gonfiatore.
    Aquistando il secondo quando lo caricavo notavo una perdita di aria, ma subito risolta grazia anche alla spiegazione sulle foto di amazon, bisogna solo regolare la valvola che si trova sotto il tappo dell’erogatore!!!quindi chi si lamenta solamente e non si informa prima come risolvere piccole cose non li capisco!!
    Se avró problemi in futuro recensiró dinuovo per cambiare parere, ma per ora soddisfattissimo!!!!

  12. Chase Grodin (verified owner)

    Super cool! Didn’t know this existed. Live about an hour outside of Lake Tahoe so I’m gonna take it out there and have some fun! Would recommend buying if you want to get a little more complicated then snorkeling.

  13. steven getty (verified owner)

    Gave me a chance to stay underwater longer than I could holding my breath! Opened up a whole new world. I’m hooked!!!

  14. larrue g. (verified owner)

    Super produit qui correspond à mes attentes.
    Par contre, il me faut 1 heure pour remplir la bouteille avec une pompe à pied. En faisant des pause pour calmer le rythme cardiaque, et laisser refroidir la pompe.
    Un compresseur est vivement recommander.

  15. Tobias (verified owner)

    Super für kurze tauchtrips aber nicht möglich die flasche mit der pumpe aufzufüllen da braucht man ein kompressor.

Only logged in customers who have purchased this product may leave a review.


$15.99 From: $15.99
$179.99 From: $149.99