Tankless diving since 1969. Since 1969, Brownie’s Third Lung has been at the forefront of innovation in the diving industry.
As the world’s largest designer and manufacturer of surface-supplied air (SSA) diving systems, we make diving more accessible and enjoyable for everyone—from recreational divers to professionals. Our signature products, including gas-powered and battery-powered systems like the Sea LiON™, deliver a unique tankless experience. Whether you’re diving to explore reefs, clean boat hulls, or just enjoy
underwater adventures, Brownie’s THIRD LUNG systems make it possible to dive with ease and freedom. Our products are backed by decades of expertise and a commitment to providing innovative solutions for divers worldwide. Discover the underwater world in a new way with Brownie’s THIRD LUNG. Dive deeper, stay longer, and experience more—without the weight of traditional scuba gear.
07/18/2026
Meet the Sea Lion Sport, a new way to get into tankless, battery powered diving!
You can go down to 65 feet with 2 divers or 33 feet with 3 divers!
2-diver setup + 50 amp-hour battery = about 2 hours of runtime, with quick swaps to keep diving longer.
Check it out at Browniedive.com
07/17/2026
This is the only lobstering gear you need! 🦞 🌊
Meet the SeaLiOn by Brownie's Third Lung! It's tankless, battery powered, and long-lasting - perfect for your next lobstering session! 🛟 🤿 🪸
Check it out at Browniedive.com
'sThirdLung
07/17/2026
With a Brownie, you can go anywhere! 🛟
With up to 3 hours of battery life, swappable batteries, and support for up to 2 divers to 65 feet or 3 divers to 33 feet, you can get up to some awesome stuff! 🔋 🤿 🌊 🐋
Where would you dive if you had a Brownie? Comment below 👇 🤿
Check out the Brownie systems at Browniedive.com
's 'sThirdLung
07/16/2026
Brownie's has been making surface supplied diving systems since 1969!
This is the new battery powered system, called the SeaLiOn! It can last for up to 3 hours, has rechargeable and swappable batteries, and can support multiple divers to up to 65 feet!
Check it out at Browniedive.com
'sThirdLung
07/14/2026
Wait Brownie's has battery powered systems?! 🔋 🤿
Meet the SeaLiOn, a battery powered surface supplied air diving system. 🧜♂️ 🫧 🐟
It can last for up to 3 hours, has rechargeable and swappable batteries and can support multiple divers to up to 65 feet.
Check it out at Browniedive.com
'sThirdLung 's
07/13/2026
If you're reading this, it's time to get a Brownie for lobster season! 🦞 🤿 🌊 👀
With 3 hours of dive time, swappable and rechargeable batteries and power to support multiple divers, the SeaLiOn is perfect for lobstering! 🦞
What would you use your Brownie for? Comment below 👇
Check it out, as well as our gas powered options at Browniedive.com
'sthirdlung
07/12/2026
What happens when you send your Brownie in for service?
Check it out! Learn about other Brownie options and accessories at Browniedive.com
's 'sThirdLung
07/11/2026
Scuba divers are going to have opinions about this! 🤿
This is the SeaLiOn by Brownies, a perfect diving system for lobstering! 🌊 🦞
It is battery-powered, supports multiple divers to up to 65 feet and can last for up to 3 hours 🦞 👀
Check it out at Browniedive.com
's
07/10/2026
We're made to last! Brownie's has been making diving equipment since 1969.
The newest iteration - the SeaLiOn is a battery powered version of the gas system.
Tankless. Lasts for up to 3 hours. Supports multiple divers up to 65 feet.
Check it out: Browniedive.com or check out our sister company that makes single-diver units: Diveblu3.com
'sThirdLung 's 's
07/10/2026
Don't want your lobster season going smoothly? Don't buy a Brownie.
It's battery or gas powered, made for depths up to 65 feet for multiple divers and long-lasting! Practically made for lobstering!
