Need boot for Omega 75CF Carbon Fiber Tank

Not sure of the dimensions on the Omega, if you are coastal most dive shops should have something that accommodates you. A framing square with another square will give you the exact circumference and you can shop scuba on line shops if not near a shop. A few turn of duct tape can make an oversized boot fit. 

I have a air venturi 74cu ft tank.

I bought the boot from AMAZON...

Measure the circumference of your tank and order one.

I just bought one of these tanks on advice from Humdinger. He recommended that I put a ski cap on the bottom and hold it in place with a loop of a carry strap.

For transporting the tank, Humdinger recommended these custom tank stands.

https://www.airgunnation.com/topic/wts-custom-tank-stands-for-air-tanks/

omefa lists the diameter as 6.3 inches. I ordered a pair based on that info. I’ll report back on the fit once everything arrives.

They fit. I like them enough to put them in my profile pic.

I recommend buying a padded tank bag from Loren. They're really nice and have storage on both sides.