Surface-supplied hookah diving systems

Brownie’s Third Lung™

Tankless diving systems for boaters, lobstering & family fun.

Keep the air on the surface and the tanks off the deck. Brownie’s floating dive compressors are built for family fun, lobster season and reef exploring right from your own boat. Shop our portable BLU3 Nomad product line if you’re looking for the smallest option.

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Since 1969 Gasoline, Battery & AC Floating, Built-in & Land Based

Divers exploring underwater using a Brownie's Third Lung floating dive system

Made for boaters

Compact hookah systems designed to live on your boat and be ready whenever the underwater world calls.

Extended bottom time

Brownie’s floating systems provide air equivalent to 9+ scuba cylinders, all in one package.

Versatile applications

Family fun diving, lobstering, hull cleaning and anchor checks, prop inspections and more with one proven Brownie’s platform.

All diving involves risk. Brownie’s systems are not a substitute for scuba certification or proper training. Always follow the owner’s manual, depth limits and local regulations.

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Choose the right tankless dive system

Compare gasoline, battery-powered and compact single-diver systems to find the best fit for your diving plans.

Comparison of Brownie’s gasoline Third Lung systems, Sea LiON battery-powered systems, and BLU3 Nomad single-diver units.
System type	Gas-powered Third Lung systems	Sea LiON battery-powered systems	BLU3 Nomad & Nomad Mini
Price range	$2,895–$5,555	$5,495–$7,995	$1,649–$2,199
Best for	Budget-friendly family fun, lobstering and boat jobs.	Electric diving with no gasoline on deck.	Single-diver, compact and travel-friendly use.
Power source	Gasoline engine.	Lithium-ion battery.	Lithium-ion battery packs.
Divers supported	Up to 3 divers (by system).	Up to 3 divers (by system).	1 diver.
Max depth	33–65 feet by system.	33–65 feet by system.	15–30 feet by system.
Run time	Up to 4 hours.	2–3+ hours.	40 minutes–3 hours.

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Brownie’s Third Lung floating dive system with a yellow ring and dive flag drifting in bright turquoise water

Portable floating systems

Classic floating hookah diving systems for serious boaters and lobster hunters who want maximum runtime and capacity.

Ideal for hull work, lobstering and reef exploring
Supports multiple divers (model-dependent)
Compact footprint on deck or swim platform

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A drone view of two divers using a Brownie’s Third Lung system beside a boat

DC powered & yacht systems

Integrate Brownie’s into your vessel’s power system for a clean install with no portable gasoline engines to store on deck.

Engine room or lazarette installations
Designed for yachts, sportfishers and tenders
Custom configurations available

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Divers at the surface breathing from a Brownie’s Third Lung system with hoses trailing behind

Accessories & spare parts

Keep your system ready for the next trip with hoses, regulators, harnesses and other factory components.

OEM hoses, components and fittings
Additional diver kits and upgrades
Service support from Brownie’s team

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Why Brownie’s

A compact way to play underwater.

Brownie’s Third Lung systems are designed around real-world use on real boats—from quick prop checks to long days chasing lobster with friends and family.

No filling scuba tanks – simply swap batteries, recharge, or refuel.
Launch from the swim platform or tender in minutes.
Support one or more divers depending on the model.
Backed by decades of Brownie’s hookah diving experience.

Brownie’s Third Lung floating dive compressor with yellow flotation ring and dive flag near a boat

Built-in & Yacht Systems

Integrate Brownie’s directly into your vessel.

For larger vessels, DC and AC powered Brownie’s compressors can be installed permanently below deck, giving crews a ready-to-go dive platform without portable engines on deck.

Custom layouts for engine rooms and lazarettes.
Options to tie into existing ship’s power.
Ideal for yacht maintenance crews and charter operations.
Consultation available through Brownie’s engineering team.

Request a yacht system consult

Boat with Brownie’s Third Lung floating system and two divers underwater

Sister brand: BLU3

Compact, portable tankless diving

BLU3 Nomad and Nomad Mini offer a lightweight, battery-powered way to explore below the surface. These single-diver systems are great additions for boaters who want a grab-and-go option that pairs perfectly with Brownie’s larger platforms.

Battery-powered systems for 1 diver.
Nomad (30 ft max depth) · Nomad Mini (15 ft max depth).
Packs small — ideal for center consoles, tenders and RVs.
Built by BLU3, a sister company in the Brownie’s Marine Group family.

Nomad (30 ft) Nomad Mini (15 ft)

Diver using a BLU3 Nomad tankless dive system entering the water from a boat

On the water with Brownie’s

What customers say about Brownie’s

Read recent Google reviews from Brownie’s Third Lung customers below.

Ray Del T.

10 months ago

It was a true pleasure to do business with Brownies. Heather is truly a breath of fresh air!

Luke C.

2 years ago

I know it's top quality safest product on the market

Adam E.

2 years ago

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!!

Tight lines
Adam

Lonnie M.

2 years ago

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.

Michael B.

2 years ago

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!!

wheeljobdiving

2 years ago

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.

Joe T.

3 years ago

These guys are awesome! I highly recommend you go in and check out their show room. Extremely helpful! Great customer service!

LISA E.

3 years ago

Can’t say enough great things about this business!!!! So helpful!!!!

doug H.

3 years ago

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.

Michael M.

3 years ago

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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Plan your Brownie’s Third Lung setup

Whether you need a portable floating unit or a fully integrated yacht system, our team can help you match the right Brownie’s configuration to your boat and diving plans.

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