Keep the air above and the adventure below. Brownie’s gives trained divers a simpler way to explore, work and play underwater—without scuba tanks crowding the deck.
Start with how you want to power, carry and deploy your system. Every route delivers the same Brownie’s idea: breathing air stays at the surface while you explore below.
01Original Gas
The OG
Starting at$2,900
Refuel and keep the day moving.
The classic floating Brownie’s—modernized into one straightforward gas-powered system with options for the crew you bring.
From a quick look at the prop to a full day chasing lobster, Brownie’s systems are designed to get off the boat, into the water and back aboard without turning the deck into a dive shop.
Less bulk aboardKeep breathing-air cylinders off the deck.
Support for the long haulFactory parts, service and real people who know the equipment.
Train, plan and be readyEducation and proper emergency preparation belong in every dive plan.
Make more of the boatTurn maintenance, exploring and family time into reasons to get wet.
Share the underwater world with trained family and friends.
Sea LiON · shore ready
Beyond the boat
Beach days can be dive days too.
Sea LiON is not tied to the marina. Charge the battery, bring the system to the shoreline and float the breathing-air supply at the surface while your crew explores below.
Nomad and Nomad Mini pack single-diver, battery-powered air into remarkably compact systems. They’re made for center consoles, tenders, shore dives and anyone who puts ultra-portability first.
Brownie’s has been making surface-supplied air systems since 1969. The engines, batteries and boats have changed, but the idea has endured: keep the breathing air above so divers can move more freely below.
That history now runs through The OG, Sea LiON and BIAS—and through the parts, service and people who support Brownie’s owners long after the first dive.
Online training is included with a new Brownie’s system. Complete the coursework, then practice setup, communication and emergency skills in a controlled pool before taking the system into open water.
Our Spare Air and Egressor kits provide independent emergency air intended to help a trained diver reach the surface in an out-of-air situation. Always be prepared!
Spare Air is another company in the Brownie’s Marine Group family. Its compact refillable breathing system can be worn with a Brownie’s cummerbelt as part of a properly planned emergency setup.
Backup air supplements training and planning. Every diver must remain prepared to make an emergency ascent.
Brownie’s is the United States distributor for Bright Weights. The flexible belt and coated 500g slug system makes it easy to spread weight around the hips and adjust the amount without unthreading the belt. It can also be worn with the Brownie’s basic tow belt when you are not using a drop-weight cummerbelt.
One thing we noticed while diving with a Brownie’s is how visible the floating system and its large elevated dive flag are to nearby boats. We wanted snorkelers and scuba divers to have that same kind of unmistakable surface presence.
A traditional two-dimensional flag can become hard to see when it turns edge-on. 3DBUOY displays dive flags in multiple directions on a bright three-dimensional shape, helping boaters recognize that people are in the water.
Tankless systems are our specialty, but they are not the only path. Brownie’s and our sister companies also support hose diving, onboard tank filling and commercial work.
01H
Hose diving from a scuba tank
Keep the scuba cylinder at the surface and run a breathing-air hose directly to the diver below.
Tell us how many people want to dive, where you plan to use the system and which power source works best. We’ll help you find the right tankless setup.
One family of companies. More ways to explore below.
Brownie’s Third Lung is part of Brownie’s Marine Group, a publicly traded family of marine technology companies spanning tankless diving, portable dive systems, emergency air and high-pressure compressors.
Met the most amazing people at Brownies this morning. I got hustled by someone on marketplace for a used third lung, and the people at Brownies, Heather and Mike, were so kind and hospitable. They took the old unit off my hands and hooked me up with a great deal. All while treating me like family walking me through the entire operation and going out of their way to give me amazing tips and pointers. This is the kind of service that all other business should model themselves by. They literally saved the day for my daughters. Can’t wait to get this thing out on the water. Thanks again Heather! scratch Tsunami for me!!
I was FLOORED by the level of Customer SERVICE at Brownie's Third Lung! Heather helped me set up getting some work done on my older equipment, and she was GREAT! Communication throughout the process was timely and accurate. She knew what needed to be done and how long it would take. Return shipping to me was FAST and on time. I would not hesitate to work with BTL next time I need Service.
What an awesome experience! Jack is the best, he was very helpful in showing me the operation of my Nemo Dive system. The coolest device to see the underwater world without the scuba diving equipment. You guys rock!!
I own six Brownie Third Lung, compressors of various types from belt driven to direct drive And from Standard style to commercial these are my every day use equipment because they’re rugged they’re durable and if they do have a problem, they’re easy to work on I won’t use anything else.
Used my brownie hookah three times. Warranty expires after 1 year. The third time I tried to use it is when it stopped working. Called brownie and spoke with them about the issue. The answer was for me to ship it to them and they will determine whether it’s a part defect or not. The shipping cost to ship it is $200.00 each way. At this point I will be buying a better brand hookah and learned my lesson the hard way. If you’re looking for a good hookah the check out Keene engineering. Been using my friends for about a year with no issues.
This place really has it going on!!!! I am one of those slackers that just took my unit in this week to get ready for mini season. I am terrible at caring for my unit and that thing needed a lot of work but they made it happen for me. The mechanics mike and Jerry were very knowledgeable about the configuration of these systems making it easy for them to get me back out on the water. I also would love to give a big shout out to heather and Stacy in the office these girls know everything about these systems from how to care for them and even the mechanics of the system heather even gave me tons of pointers on how to care for my system and how to keep it in the best condition. Lastly they have a great shipping dept and Claude was able to get my unit shipped out to me in the keys in no time at all. I love this product and especially this company for always treating me so fair they really do value their business and their customers…. Thank you Brownies!!!!!!
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Explore Brownie’s THIRD LUNG™ Diving Systems
Brownie’s THIRD LUNG™ offers a range of innovative diving systems designed to enhance your underwater experience. Our cutting-edge technology makes diving more accessible, allowing divers of all skill levels to explore the depths without the burden of traditional tanks.
Whether you’re a seasoned diver or just starting, our tankless solutions provide freedom and flexibility. With options like the Sea LiOn™ and our battery-powered systems, you can enjoy longer dives and greater mobility, making every underwater adventure memorable.
Understanding the Benefits of Tankless Diving
Tankless diving systems revolutionize the way divers experience underwater exploration. By eliminating the need for heavy tanks, divers can move more freely and comfortably, focusing on enjoying the marine environment rather than managing cumbersome equipment.
These systems also promote longer dive times and reduced physical strain, making them ideal for recreational divers, underwater photographers, and professionals alike. With features tailored to enhance safety and ease of use, tankless diving opens up new possibilities for exploration.
Comparing Battery-Powered vs. Gas-Powered Diving Systems
Choosing between battery-powered and gas-powered diving systems can significantly impact your diving experience. Battery-powered systems, like the Sea LiOn™, offer quiet operation and zero emissions, making them environmentally friendly and perfect for close encounters with marine life.
On the other hand, gas-powered systems deliver robust performance for longer dives and are often preferred by commercial divers needing extended air supply. Understanding the advantages and limitations of each option helps divers select the system that best suits their needs and diving style.
Accessories to Enhance Your Diving Experience
Brownie’s THIRD LUNG™ provides a wide range of accessories designed to complement your diving systems. From specialized weights and hoses to gear bags and compressor parts, our products are crafted to meet the diverse needs of divers.
Investing in quality accessories not only enhances your diving experience but also ensures safety and reliability during your underwater adventures. Explore our selection to find the perfect additions to your diving gear, tailored for both recreational and professional use.
01
Original Gas
02
Rechargeable + Floating
03
Built Into Your Boat
Sea LiON · shore ready
1969
