SMACO S700 2L Scuba Tank Portable Mini Scuba Diving Tank

(37 customer reviews)

SMACO S700 2L Scuba Tank Portable Mini Scuba Diving Tank—DOT Certified Tank with 25 Minutes Backup Diving Air Tank Kit Scuba Cylinder Underwater Breathing Device with Aluminum Hard Case


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  CE / DOT Scuba Tank Certified
  After-sales | Returns Policy of 30 days


Introducing the SMACO S700 2L Scuba Tank the newest, most advanced scuba tank available. Our upgraded design boasts enhanced durability, superior performance, and maximum safety standards. Enjoy longer dives, greater ease of use, and unprecedented reliability with the SMACO S700 2L Scuba Tank. 

s700 scuba tank colors
 Brand    SMACO Type    S700 2L Scuba Tank
 Color    Green Black N.W    6.5kg
 Using time    up to 20 minutes Size    42.9 × 11.4 × 8.9cm
 Material    6061 Aviation Aluminum Capacity    2 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 2Mpa
 Inflatable male     8mm Breathing times     (Calculated at 0.5L per breath) About 540 times
fresh air valve

High quality regulator: stable performance and durable, ensure more safety

High-performance first-stage regulator: stable performance, reduce the work of the second-stage regulator.

Are you looking for a scuba regulator that provides you with the freshest, safest air, with maximum performance and protection? Look no further! Our Excellent S700 2l Scuba tank is equipped the regulator with a Micron Air Filtration System for adsorption and filtration of impurities, and a 5K 5000psi External ExplosionProof Valve for pressure relief protection. Plus, its highperformance firststage regulator ensures stable performance for a more enjoyable underwater experience.

Portable 2L Mini Scuba Tank

It’s the perfect choice for people who travel a lot and enjoy diving. It has a smaller size and weight, so you can easily carry it around.

It also has a higher air capacity than others mini scuba tanks from smaco, which means you can stay underwater for longer. Plus, its innovative air exchange system makes it easier to use and more efficient. So if you’re looking for an easy and safe way to dive, the Smaco S700 is the perfect choice for you.

lightweight scuba tank

With three refill options available

– at local dive shops, – an 8mm refill adapter, – an electric air compressor

You can be sure you’ll never run out of air! Make inflation easier anytime, anywhere! Get ready to explore the ocean with the SMACO S700 2L Scuba Tank – the ultimate diving and snorkeling companion.

inflate your scuba tank

The benefits of the SMACO S700 2L Scuba Tank include:

– Lightweight and compact design, making it easy to transport and store.

– 2L capacity, allowing for longer dive times.

– Three convenient refill options, enabling you to refill anywhere, anytime.

– Easy inflation with an electric air compressor.

– Freedom to explore the depths of the ocean without lugging bulky equipment.

Increased safety and peace of mind, knowing you have a backup air source in case of an emergency.

s700 application


A product that has been rigorously inspected to provide you with the utmost in safety and quality. It boasts DOT, CE and other gas cylinder inspection reports from the United States and Europe, so you can rely on its superior performance.

inspection and certification
  • Set A: a 2L scuba tank, aluminum hard case, a vest
  • Set B: a 2L scuba tank, aluminum hard case, a vest and a refill adapter
  • Set C: a 2L scuba tank, aluminum hard case, a vest and a smaco heap 1 electric air compressor
  • Set D: a 2L scuba tank, aluminum hard case, a vest and M8058 full face diving mask

For 1.9liter or 2liter: 2l in Europe, 1.9l in USA

Some frequently asked questions...

The usage time of SMACO portable lung tank varies depending on individual's breathing rate and depth, and we provide the air supply time tested in 3-meter deep water. It is recommended to read the instructions carefully and follow the guidelines before using it.

There are 4 ways to inflate the SMACO mini scuba tank:

Manual pump: You can use a manual pump to inflate the mini scuba tank. This requires you to continuously pump by hand until the tank reaches the desired pressure. (Only applicable to tanks below 1L, as a backup inflation tool)

Electric Air Compressor: You can use an electric pump to inflate the mini scuba tank, which will be faster and more convenient.

Scuba tank: If you have a scuba tank, you can use a adapter to connect the mini bottles to transfer air.

Local diving shop: You can also go to a local diving shop for inflation, but you will need to purchase an adapter as an inflation tool.

Before inflating, make sure the tank is completely dry and in the closed position. Do not overinflate the tank to avoid damage. If you have any questions about inflation, please contact our customer service staff.

Yes, it can be transported by air. It is recommended to disassemble the gas cylinder prior to shipping and keep it in a gasless state to comply with air transportation restrictions. If you need more guidance on air transportation, please contact our customer service team.

The shipping time depends on the specific location and shipping method, generally taking 5-8 working days.For some remote countries or regions, the shipping time may take approximately 7-10 working days.


Absolutely. We believe the SMACO mini scuba tank is the best portable lung tank on the planet. If you disagree, or are less than 100% satisfied for any reason, then simply send it back within 30 days for your money back.

We offer a return service within 30 days, as well as 2 years of maintenance assistance service. Our commitment to quality and customer satisfaction means that you can shop with confidence when purchasing SMACO products.

Basically, if anything goes wrong with your Mini Scuba Tanks/FFM Mask/Air Compressor- we’ve got you. We’ll repair or replace anything that isn’t working.

Product Guarantees
  1.  SMACO offers a 30-day money-back guarantee for customers who are not satisfied with the product. If the product was shipped, the purchase price will be refunded minus the shipping costs.The cost of trial and error is not high, but the cost of miss is very high.
  2. SMACO offers a free replacement for products you received that do not work. You just need to provide your order number and order information on our website, and we will provide after-sales service immediately.
  3. SMACO offers a one-year after-sales service and provides free repairs or replacements for products with defects, excluding those caused by intentional damage. Customers provide the order information on our website and we will respond promptly.
  4. Is one year the end of our service? No! We provide lifetime customer service after the customer purchases our product. Customers can contact us at any time for any issues, and we will solve them or provide help as soon as possible.
  5. We do not accept refunds due to short usage time of the scuba equipment, as this can vary greatly depending on the user's lung capacity, diving depth, and breathing frequency. If you feel that you have used the air tank for too short a period, please contact us! Our PADI certified instructors can provide you with training on how to extend your underwater breathing time, and practice your breathing skills.
  6. We do provide CE and DOT certified inspection certificates for your scuba tank to help you show them when you go to the dive shop to get it refilled, but don't forget to also show them your scuba diving license.
  7. Make money with SMACO! You can make money with SMACO by submitting pictures or videos of your diving experiences for cash rewards ranging from $5 to $200 with no limit on the number.
  8. For any inquiries, please contact us at and our professional customer & technical teams will get back to you as soon as possible.



Green, Black


A, B, C, D


37 reviews for SMACO S700 2L Scuba Tank Portable Mini Scuba Diving Tank

  1. Eddie (verified owner)

    I had a wonderful vacation with this tank.It makes me crazy that I use this to treasure hunt in the river and it works perfect as a lightweight tank that helps me stay under longer. Gives you about 20 minutes underwater maybe a bit more. Easily refilled with a little muscle. Perfect for quick recreation. Over all I recommend it.

  2. John Compton (verified owner)

    Excellent product overall. No leaks. Smooth regulator and purge valve. Ships un-assembled but easy to assemble. Fills to capacity in about 15 minutes using a water-cooled 1800W scuba tank compressor. However the pressure gauge on this tank is very small in diameter (hard to see with foggy goggles underwater) and has a pretty short hose compared to full size rigs. I bought this strictly for shallow water diving from the beach (and/or paddleboard) and always use it with a wrist mount diving computer to monitor my depth and ascent rate. I personally would not suggest any rookies taking this thing down below 15 feet for serious safety reasons. You’ll get about 3 or 4 breaths left once you start to feel you have to pull air (when almost empty). Does not come with or integrate with any sort of Buoyancy Control Device (BCD). It’s neutrally buoyant with about 1,500 PSI in the tank.
    Remember, scuba diving is more dangerous than sky diving, so please don’t do either untrained. For example – imagine diving alone and running out of air 20+ feet underwater. The first instinct is to panic, hold your last breath and swim to the surface as fast as possible. This is literally the worst thing you can do. You’ll increase your heart rate (consume oxygen faster), over expand (rupture) your lungs on the way up, and turn the compressed liquid nitrogen in your blood into gas, causing “the bends” (if you don’t die first). The risk of death or serious injury becomes more probable the deeper you dive. Seriously, get trained so you know how to avoid this situation and what to do if you’re caught in it. Safe diving my friends.

    Image #1 from John Compton
    Image #2 from John Compton
  3. Craig Macfarlane (verified owner)

    Just bought a S700 kit and I think it’s great! I can easily carry it on my kayak and I get 20-30 mins of shallow diving/snorkelling from it, which is about what I’m looking for. I have one criticism though. The second stage regulator has quite a lot of breathing resistance – similar to a cheap octopus reg (I guess that’s what it is). There is an adjustment screw on the inlet of the mouthpiece but it doesn’t really make any difference (the two options are tight to breath or freeflow). It’s annoying me enough that I’m going to try putting a second stage from one fo my other scuba regulators on it. Otherwise, no complaints!

  4. A***i (verified owner)

    I have the smaco as a bailout rig, I bought a small compressor to fill it.
    One thing that I will say is the smaco tank is soo much fun when I’m just hanging out at the pool for the day. I have probably had more use out of it by far than my actual 80cu tank

  5. Amir (verified owner)

    I dived first time last year and since then wanted to try again and have the same experience. First, before buying expensive equipment I wanted to try something cheaper and smaller which would fit in my car. I browsed a lot and came across to this smaco brand mini scuba tank. Decided to buy and give a try with my buddy who is professional diver. So far experience was excellent, my first dive was 15 minute. It held very well, didn’t feel uncomfortable or unsafe under the water. I am going to give a try again, let’s see how it will work.

  6. Roy Salazar (verified owner)

    I had a wonderful vacation with this tank. It’s perfect as a lightweight tank that helps me stay underwater longer. Gives you about 20 minutes of underwater time, and a little more, perfect for quick entertainment. All in all I recommend it.

  7. Nicole Ray (verified owner)

    This gives me an extra 10 mins when messing around and not wanting to actually dive, but still wanna see something just outside my breath range.

  8. Diane Correa (verified owner)

    As descripbed
    The description is accurate
    Speed in charging

  9. Jon Dunagan (verified owner)

    I live in Kona, Hawaii. Purchased 2 of the Smaco 2l dive tanks and 2 of the 1l dive tanks. These products are just awesome!!! I have used them almost daily personally and with family members for 2 months now. I dive 15-30 ft down with a 5-6lb weight belt to swim with the giant Manta Rays, Spotted Eagle Rays, White Tip Reef sharks, Grey Sand sharks, schools of baitfish etc. They are dependable and give plenty of time underwater. the 1l tanks gives me 6 minutes at 30ft down and 12 minutes at 15ft down. The 2l gives me 12 minutes at 30ft down and 24 minutes at 15ft down. Best of all is that I can fill them to 3000 psi in my own home with the maintenance free GX CS2 compressor. It takes 22 minutes to fill the 1l tank and 44 minutes for the 2l tank. Nearly everyday I have people saying “wow” and “so cool” and asking me where to get them. Very impressed with this product and they are built solid. Many of my my family members have their larger full size tanks but would rather just use the Smaco tanks as they are so convenient and lightweight. I usually just wear mine while on my paddle board and jump in when I see something interesting. I tether myself with a 35ft rope to my paddleboard and have a dive flag on top. So fun!!!!!

  10. Miles Frank (verified owner)

    We used my S700 this past weekend in the pool for our Easter celebration! The Heap 1 pump worked great as well!

  11. Fabián (verified owner)

    El equipo funciona perfecto!!

  12. Douglas Masters (verified owner)

    The product is as specified in the specifications. All the parts seem to be of very high quality. In general, pumping a bottle with a hand pump does not make any sense, it is time consuming and tedious. I recommend a compressor or filling directly from a larger bottle.

  13. Melba (verified owner)

    This kit has everything you need to get started,I received my unit and the quality was better than expected. It comes with cutout foam to fit the tank and accessories in the case.

  14. István (verified owner)

    The big one… with slow breathing rate I reached 60 minutes at 1.2 meters
    Someone wrote 6 minutes… well than his/her breathing rate is by far too fast and/or deep

    1.0 litre on 200 bar (3,000 psi) = 200 liters air
    An avarage person inhales (and exhales) 10 liters per minute (my scuba diving book from the 80s says 20-25 on surface).
    20-30 minutes inshallow water, depending on your breathing rate. Mine is 2 per minute on same depth level. Yes, 30 minutes at 1.2 meters. Sometimes only 20 or only 15, but than there is hard work.

    But be aware regardless of – S300, S400 or S700 – of going deep! 100 liters on surface is only 50 liters at 10 meters (half the time!) and 33 liters at 20 meters, 25 liters at 30 meters… do not dive deeper as recommended (3-4 meters), maximum a touchdown to 10 meters, but than exhale long at ascending and ascend slowly!

    But I love all of them! Simple to handle, good quality (have 30 hours within two weeks with two S700 (2L) and one S400 (1.0L) in swimming pool, 960 liters and few minutes over 3 hours, if I work hard 2 hours, but never less.

  15. Mark Hall (verified owner)

    In perspective this is a great purchase. Its not as sophisticated as my open water gear, but first that gear costs a fortune and second this wasnt designed to be applied to that use case. The small size makes it super handy to be in the cockpit of the boat and jump over the side at any given moment! The compressor worked great! Mouth piece was a bit stiff but sufficient. Received my order within a week. Bought the 4L , tube pack and compressor. Thinking about purchasing a second smaller set for the pool. Just add a weight pocket on either side and it’d give it a 10! BTW, I. Am much more pleased with your products than I ever was with my Spare Air buys!Thanks for getting this to market at such an affordable price. Mark

  16. Stephen Marino (verified owner)

    Great gift for sailors!! My dad loves sailing so I got him this for one of his trips. Not only did he use it to scuba dive in the middle of the ocean, he also used it to fix the engine while in the middle of nowhere. This can make trips better or be a life saver!

  17. Karen (verified owner)

    I’ve been using my Smaco S700 for a few months now and I’m really happy with it. It’s reliable, lightweight and doesn’t take up too much space. I would definitely recommend it.

  18. Amanda (verified owner)

    A super handy and lightweight system.I bought this to use in the lake and in the pool. It’s absolutely perfect for getting under the boat to clean it off or retrieve something dropped off the dock. It will provide about 15 mins of air by my calculations. Maybe 30 for a smaller person. It is Quality gear that will hold up well. This will get mild to medium use as we are not on the lake full time. It’s also great for search and rescue and quick recovery dives. Absolutely great to have around. Very handy.

  19. Romping (verified owner)

    If you have level 1 certification this is a great product. It takes about 45 minutes to pump up the tank and depending how much experience you have it will last for 10-20 minutes. E.g. inexperienced folks work too hard underwater and breath too hard which increase rate of air consumption. The pump generates a lot of heat so I’m not sure how long it will last, but it has strong fans to push the hot air out. Personally, I come back and disconnect before it hits the target level by setting a timer on my watch. Make sure to read the directions, because if you don’t bleed off the air before disconnecting from the bottle it could discharge a lot of air in an uncontrolled manner. The regulator, pressure dial and backpack harness are all excellent. Very happy with this product.

  20. Jon (verified owner)

    Here are some pictures and video today I took with my Smaco 700a.  This was off the Kona coast in Hawaii at 35 feet deep.  These Manta Rays are 12-14 ft across. Thanks for making such a great product!

    Image #1 from Jon
    Image #2 from Jon
    Image #3 from Jon
    Image #4 from Jon
  21. Lori B. (verified owner)

    My son is thrilled with the system he purchased. As a certified diver, he finds the SMACO scuba tank to be the perfect system, which allows him to alternate between snorkeling and longer underwater treasure searching while in shallow water. Due to the tank air capacity it is not intended for long term underwater diving, but it does allow a treasure hunter to stay on the bottom long enough to utilize a metal detector or search an area more thoroughly.

    Highly recommend for anyone certified in diving in areas bulky tank systems are not needed.

  22. Janet Ryan (verified owner)

    This was bought as a gift for my son-in-law. He was happy with the product and ready to use them for scuba diving.

  23. Tom Kelsey (verified owner)

    This regulator works great and very handy having the gauge where you can see it while diving.

  24. Tom Kelsey (verified owner)

    This regulator works great and very handy having the gauge where you can see it while diving.

  25. Otaku (verified owner)

    Nice little set. It is by no means professional scuba equipment but could be used as part of training or for new younger divers. The tank could last 15 to 20 minutes under water. Mostly used for snorkeling.

    Image #1 from Otaku
    Image #2 from Otaku
  26. Matt & Tracey (verified owner)

    I am so Impressed with this SMACO Scuba tank Kit!

    There is nothing cheap about the build quality of this set. I have been really wanting a tank like this for many years, and when I finally got one I can’t tell you how truly impressed I was when I first saw it! This mini sized tank is great for the beach, lakes, rivers, and coral reefs. This will take your snorkeling adventures to the next level! My wife and I loved snorkeling in Florida, especially in the springs and I have always wanted to be able to use a small scuba tank like this one.

    Most dive shops that will fill a tank this size for about $3-$5. Perfect for so many things like learning how to scuba dive, underwater exploration, aquatic fishing, boat cleaning, fixing docks underwater, and the most popular of all, diving entertainment! It is an excellent dive tank, and is great when you don’t want to bring your bigger tank to the beach or diving at a spring.
    I love it and highly recommend this kit!

    Image #1 from Matt & Tracey
    Image #2 from Matt & Tracey
    Image #3 from Matt & Tracey
    Image #4 from Matt & Tracey
  27. John E. Runyan (verified owner)


  28. Zachariah (verified owner)

    A super handy and lightweight system.
    It is an amazing kit for anyone interested in diving, or for experienced divers looking for an easy to transport lightweight system.

  29. Samantha (verified owner)

    Wow this is such nice quality and I can not wait to use it! it comes with everything that you need. Shipping was fast and the quality is outstanding.

  30. Patricia (verified owner)

    Very nice quality! This is such nice quality and I can not wait to use it! it comes with everything that you need. Shipping was fast and the quality is outstanding.

  31. Number1otaku (verified owner)

    Just want to say definitely worth the purchase.

  32. Jessica Lucile (verified owner)

    This is absolutely fantastic. This has made training in the pool for extra practice for my scuba certification so much easier. It’s very lightweight and much less expensive than a full sized one. This is great for short dives. I never got the full 35 minutes out of it but I got around 20-25. I haven’t tried any other mini ones to compare this to but from my experience with it I would recommend it.

  33. bateau_famille (verified owner)

    Découverte de la plongée!! Le père noël est passé par là !! Premier essaie réussis… pour descendre le long de la chaîne. marque smaco 2l 15min-20min 1l 10-12min.

    Image #1 from bateau_famille
    Image #2 from bateau_famille
  34. David Ruiz (verified owner)

    Cargando la botella para hacer una inmersión …una maravilla este pequeño compresor.

    Image #1 from David Ruiz
  35. Oleg (verified owner)

    Exceptional customer service and products! I am long time divers and travel a lot, and more local diving).
    The 2L scuba tank is perfect for my dive trip, and the customer service was outstanding. Carla was very helpful and knowledgeable about the different products. The quality of the cylinders was top notch, and I would highly recommend it!

  36. ALURA (verified owner)

    Coolest gift ever.
    I’m not an avid diver but this kit makes me want to be one. It comes in the coolest case and the gear is top of the line. It’s a small 30 min tank but that feels like a lifetime underwater.

  37. Tin nguyen (verified owner)

    Just took my unit our for a quick dive. I got only about 22 minutes out of the advertised 25, but I am fairly out of shape and set my reserve very conservatively. The unit was fantastically made and solid construction, no loose parts and everything machined together nicely. The regulator fitting is fine and the air was constant and at a good comfirtable flow rate. Did not have any equipment issue or concerns during the dive. The harness did its job and was good at distributing the weight. Overall I am very pleased with a hassle less alternative to full on scuba diving.

    The hard plastic case is a great touch to the packaging for such a high end item.

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