I would make a rack for them to lay flat in the back. 2x6's with half circles cut out for the tanks to lay in, then rachet strap them down with the cargo tie downs. Thank way they are out of sight.

 

As a scuba instructor I'm sure you know the answer to this much better than me, but if they're hanging off the back and you get rear-ended, isn't there the possibility of them becoming missiles?

 

Yes sir they would become a missile. I guess I can just stick tanks there after i get to the dive site, Leave my spare on the roof rack and carry my empty tanks but they still have some pressure. Thanks.

 

Bad idea imo.
I once left a tank out in the sun for too long and the burst disk went.

I transport them in the back just behind the back seat standing up and strapped to the side. I have twin 80's though so they stand up pretty stable.

 

Bryan,
Well, I don't know how much of a craftsman or woodworker you are but, I've got a potential remedy for your situation. I've used various forms of air compressors for airing up my tires after off road runs. But, this time, with our present Jeep, a '15 JKUR, I decided to try the old "CO2" route this time. Well, based on the layout of the back of our Jeep, it called for some OUTSIDE THE BOX thinking. Er, uh, I should say, Inside the box thinking. That is, I created a box that I lined with indoor-outdoor carpet to hold my CO2 tank. It's interior dimensions, with the carpet, hold that tank very snugly. That bottle doesn't move at all. The box itself is held in place by the shelf I have in the back, that goes from fender to fender and, from the back of the back seat to the tail gate.

I redesigned the valve in the CO2 tank so that I could air up my tires WITHOUT removing the bottle. The tank lays in there and, I just hook up my hose to the already attached 150 psi. fixed pressure regulator and, begin filling tires.

The point is, the box I created for that tank can be doubled for two tanks very easily. Here's some pics, just in case you're interested.
Scott

 

I made a portable rack for the interior out of pool noodles and rope. The tanks lay flat and the pool noodles are spaced so they go between the tanks to keep them from rolling around.

I wouldn't put that much weight on any kind of tire carrier. If you must carry them outside, I'd be inclined to get a hitch hauler and strap the tanks to that.

Sent from my SM-G930U using Tapatalk

 

Retired USN Salvager Diver that used to teach for the Navy in Pearl Harbor.

Really, you don't want those tanks in or on your vehicle. OK sure looks COOL for awhile. Are you going to be needing them 24/7, I think not. Why re-create the wheel when this has been done numerous times around the world?

The majority of a tanks life is either in the shop or in the water. Transportation is a slim slice of time for a scuba tank. If you're going to be a professional instructor, look like one! You'll have more students than your Jeep will handle for diving gear. And the equipment transportation to a outside water source will require a trailer. Get the business to buy one and be done with it.

As a diver the first thing we teach is SAFETY. Every piece of your gear has a purpose and you know not to get in the water without it. So why, are you wanting to get rid of the spare tire? Like your BC, knife, octopus regulator etc. the spare is there fore a safety backup in case you require it to get you homeward bound.

Those steel 72's, aluminum 90's etc. need to be transported in a secure bracket, usually upright to prevent damage to the manifold (or incase the relief valve blows). I most always think in the line of doubles but a single like a "Come Home Bottle" require just as much protection.

 

Thanks for the information everyone.

 

This guy has some options/ideas

molle platforms solutions

 

I am a big fan of small utility trailers.