--- product_id: 157624657 title: "Qians S300 Pro Diving Tank Equipment,Mini Scuba Cylinder High Pressure Air Pump with 5-12 Minutes Scuba Tank Refill Adapter for Underwater Diving Breathe Training" brand: "qians" price: "3369.29 DT" currency: TND in_stock: false reviews_count: 11 url: https://www.desertcart.tn/products/157624657-qians-s300-pro-diving-tank-equipment-mini-scuba-cylinder-high store_origin: TN region: Tunisia --- # Qians S300 Pro Diving Tank Equipment,Mini Scuba Cylinder High Pressure Air Pump with 5-12 Minutes Scuba Tank Refill Adapter for Underwater Diving Breathe Training **Brand:** qians **Price:** 3369.29 DT **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Qians S300 Pro Diving Tank Equipment,Mini Scuba Cylinder High Pressure Air Pump with 5-12 Minutes Scuba Tank Refill Adapter for Underwater Diving Breathe Training by qians - **How much does it cost?** 3369.29 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/157624657-qians-s300-pro-diving-tank-equipment-mini-scuba-cylinder-high) ## Best For - qians enthusiasts ## Why This Product - Trusted qians brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description High Quality This diving oxygen bottle`s entire body is made of aviation aluminum alloys which could resist internal corrosion better,and stands up well to damage. The bottles are rigorously tested to meet diving standards. It is small, but very strong that hold large volumes of compressed gas. Made of aviation aluminum 6061 standard, the bottles are rigorously tested to meet diving standard. Antioxidant coating provides you a long time using. Product Decscription 1.Pressure relief valve Press the top, relief the air pressure in the bottle. 2.Fluorescent waterproof pressure gauge You can adjust at any time when you need smooth breathing. With the pressure gauge which could show how much air left ( Pressure relief valve, Inflation interface, Breathing mouthpiece, Pressure gauge with fluorescent function) 3.Inflatable interface 4.Silicone mouthpiece CHARGING WAYS It is easy to charge the gas. There are three kinds of charging ways. 1.Pressure hand pump 2.Scuba refill adapter. 3.Electric air pump Products Parameters N.W.: 1.08KGS G.W.: 1.48KGS(FULL PACKAGE) Height: 35.3CM Diameter: 2.25` LB/5.71CM Specification: 0.5L Air capacity: 100L (Compressed air) Max pressure: 3000PSI/200BAR/20MPA Available time:5-10mins (About 170 times calculate as 0.5 LITERS/ONE BREATH Surface treatment: Hard oxidation and spraying,anti-seawater corrosion for more than 500 hours) Different available time different depth: 1-3m,about 8-10mins 3-7m,about 6-8mins 7-10m,about 5-6mins Easy to Refill This oxygen cylinder has refillable design that help you save times and trouble to fill your tank. Beyond that, this cylinder endows with a pressure gauge, so tank pressure can be easily read. You could get your diving condition from the luminescent face and color-coded pressure levels easily. ## Features - 【Portable Design】Perfect size for stage, bailout. scuba diving tank doesn’t add any drag even if you have to carry the tank a long way. 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.pony bottles are compact and 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. - 【Aviation Aluminum Respirator】This oxygen tank for diving was made of aviation aluminum, standard portable oxygen tank parameters manufacturing, and meet the manufacturing standards of diving equipment. - 【Multiple Uses】One of the great things about Scuba Dive Cylinder is that they are not limited to a specific area of your diving. pony bottle can be used more than for just for shallow diving. If you already have your main unit and are looking for a self-rescue emergency backup, diving equipment is a good choice. - 【REFILL EASILY】 Beyond that, this cylinder endows with a pressure gauge, so tank pressure can be easily read. You could get your diving condition from the luminescent face and color-coded pressure levels easily. - 【CAPACITY】It allows you to breathe about 57 air outlets on the surface and about 21 times under the water.It usually keeps you staying around 10 minutes under 7-meters water But used time is flexible from 5-10 minutes according to different people`s vital capacity, diving depth etc. ## Images ![Qians S300 Pro Diving Tank Equipment,Mini Scuba Cylinder High Pressure Air Pump with 5-12 Minutes Scuba Tank Refill Adapter for Underwater Diving Breathe Training - Image 1](https://images-na.ssl-images-amazon.com/images/I/614BIJJR3YL.jpg) ![Qians S300 Pro Diving Tank Equipment,Mini Scuba Cylinder High Pressure Air Pump with 5-12 Minutes Scuba Tank Refill Adapter for Underwater Diving Breathe Training - Image 2](https://images-na.ssl-images-amazon.com/images/I/61S4spFcMsL.jpg) ![Qians S300 Pro Diving Tank Equipment,Mini Scuba Cylinder High Pressure Air Pump with 5-12 Minutes Scuba Tank Refill Adapter for Underwater Diving Breathe Training - Image 3](https://images-na.ssl-images-amazon.com/images/I/61fp6I6RYLL.jpg) ![Qians S300 Pro Diving Tank Equipment,Mini Scuba Cylinder High Pressure Air Pump with 5-12 Minutes Scuba Tank Refill Adapter for Underwater Diving Breathe Training - Image 4](https://images-na.ssl-images-amazon.com/images/I/515r-FYxptL.jpg) ![Qians S300 Pro Diving Tank Equipment,Mini Scuba Cylinder High Pressure Air Pump with 5-12 Minutes Scuba Tank Refill Adapter for Underwater Diving Breathe Training - Image 5](https://images-na.ssl-images-amazon.com/images/I/610oz5OpyeL.jpg) ## Available Options This product comes in different **Item Shape** options. ## Customer Reviews ### ⭐⭐⭐⭐ Serves My Purpose, But Do Your Research On Filling Options *by D***B on Reviewed in the United States on June 11, 2020* First, I want to state that I am a PADI certified diver. So everything to follow assumes that you know what you are doing. I wanted to drop a review since when I made the purchase, there were not any adequate ones, and took a chance.I ordered the S300 consisting of the tank, regulator, and scuba refill adapter. After having it for about 60 days, I am happy with the tank.I have a large scuba tank that I use to fill the Smaco tank. When I have a fresh fill of the large scuba tank, I am able to fill the Smaco to about 3000 to 3100 PSI. The large scuba tank that I have is filled to 3500 PSI when it is full. Thus, it is able to push up to 3100 PSI to the Smaco when my large scuba tank is full. When the Smaco is filled to 3100 PSI, I am able to use it underwater for about 6 minutes and 30 seconds when breathing normally, and up to 7 minutes and 30 seconds when holding my breath a little. Note that this is in a 6 foot pool, so I’m not that deep. The 12 minute breathe time that is advertised is not true for a normal human being.As the PSI drops in my large tank, I am not able to fill the Smaco to 3100 PSI. As an example, when my large tank is down to 2000 PSI, I could only push about 1700 – 1800 PSI into the Smaco. With that PSI, I will only get about 3 – 3.5 minutes of breathing time. In any case, it take less than 10 seconds to fill the Smaco with the large scuba tank.In terms of what I do (pool repairs), this tank is perfect. I am still wondering if I should keep on filling it with a large scuba tank, or opt to buy into a Yong Heng high-pressure air compressor. They are in the $300 range, and require a lot of TLC with water cooling and such. There are also options to get a 12v portable high pressure compressor, but they also require some TLC and are also in the $300 range. So for now, I will keep on filling the Smaco with my large scuba tank. I am very happy that I did not go the manual “bicycle style” pump route. Watching the Youtube videos, I can see it takes forever to pump it with one of those. Search Youtube for “how many pumps the 3 stage hand pump need to fill a 18 cu in cylinder to 3500psi“ and you’ll see what I mean.However… If you are a certified diver, and using this for a emergency air source, then you should be AOK.. You’ll have a large scuba tank, or have rented one to easily be able to fill this with the scuba refill adapter.Bottom line is that the tank and the capacity is great for my use. Giving 4 stars only because of the misinformation regarding the breathe time. If you purchase, just be warned that you will need to make an additional investment with either having a large scuba tank or invest in a high-pressure compressor to fill the Smaco. ### ⭐ So far.. not working *by J***C on Reviewed in the United States on August 10, 2020* Am I missing something?1/Pump: I tried several times to fill the tank manually. I read the reviews and understood I would need to spend sometime doing so. Still.. I pumped for a good 10mins and the needle did NOT move a bit. Tried to reach out to the seller.. still waiting for a response after 3 weeks and 3 messages.2/I bought a tank adapter.. tried that too... same thing the tank is not filling. the needle is not moving at all.Also contacted the seller on that..Am I missing a step or something? ### ⭐⭐⭐⭐⭐ Great product *by G***T on Reviewed in the United States on January 10, 2020* I was missing a part from my order. I reached out to the seller and never heard back. Everything else was just as pictured. I ended up having to go straight the the maker of the product to get the problem resolved. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/157624657-qians-s300-pro-diving-tank-equipment-mini-scuba-cylinder-high](https://www.desertcart.tn/products/157624657-qians-s300-pro-diving-tank-equipment-mini-scuba-cylinder-high) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-14*