How long can it last underwater?

Our recommended depth is about 5m, and you can breathe for 5-10 minutes.(Attention：Diving depth, temperature, and breathing rate will affect the use time of the scuba tank.)

Can I just purchase the tank and velcro bag (I don't need the pump)?

The pump sucks. Buy a large refill tank.

How long will the tank stay filled unused?

Hello, because the S300 series does not have an air switch valve , we do not recommend filling the diving bottle for storage. If you need it, we recommend buying the S500 series. link:https://www.amazon.com/dp/B08GHWMD4C

How is the product quality? Have you passed the safety inspection certification?

Thank you very much for your attention to our store products. This scuba tank has passed CE\RoHS\FDA\DOC\PPE and so on, you can find them all in our official website: www.smaco.com.cn. SMACO Customer Service Team.

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SMACO Mini Scuba Tank Diving Gear for Diver 0.5L Scuba Diving Tank Oxygen Cylinder with 5-10 Minutes Backup Diving Equipment Kit for Underwater Exploration Emergency Rescue Small Pony Bottle S300

SMACO Mini Scuba Tank Diving Gear for Diver 0.5L Scuba Diving Tank Oxygen Cylinder with 5-10 Minutes Backup Diving Equipment Kit for Underwater Exploration Emergency Rescue Small Pony Bottle S300

Product ID: 231937865

⚡Fast refill in 4 seconds with adapter

⏱️5-10 mins breathable backup

🛠️Aerospace-grade aluminum alloy

Description

🌊 Dive Deeper, Stay Longer: Your Mini Air Lifeline Awaits!

COMPACT POWERHOUSE - 0.5L capacity delivers up to 170 breaths underwater—your reliable 5-10 minute air backup.
RAPID REFILL READY - Refill your tank in as little as 4 seconds using SMACO’s 8mm adapter or hand pump within 30 mins.
ALL IN ONE DIVE KIT - Includes pony bottle, portable bag, and hand pump with lifetime customer support—dive prepared, always.
PORTABLE VERSATILE - Lightweight design fits effortlessly into your dive kit—perfect for pros, amateurs, and emergency rescue alike.
ENGINEERED FOR ENDURANCE - Crafted from aerospace aluminum alloy for superior corrosion resistance and rugged durability.

The SMACO Mini Scuba Tank is a compact 0.5L oxygen cylinder designed for 5-10 minutes of underwater breathing backup. Made from aerospace-grade aluminum alloy, it offers high corrosion resistance and durability. The tank supports rapid refilling via a high-pressure hand pump or SMACO’s 8mm adapter, making it ideal for professional divers, amateurs, and emergency responders seeking a portable, reliable air source.

Specifications

ASIN	B08GC6LF38
Best Sellers Rank	#2,326,202 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #526 in Diving Tanks
Brand Name	SMACO
Customer Reviews	3.6 3.6 out of 5 stars (51)
Date First Available	September 11, 2020
Item Package Dimensions L x W x H	25.94 x 8.19 x 3.46 inches
Manufacturer	SMACO
Package Weight	3.99 Kilograms
Part Number	S300-B-GREEN
Style	S300-b-green

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