Carbon Fiber tank

Hi Airgunners, I got a question I am new to airifles I got a airforce condor plus a fx wildcat . I am looking to get a carbon fiber tank , Can someone point me in the right direction in choosing one. 
I been looking at the 
#1 - Omega 75 cu. ft. / 4500 psi Air Tank
#2 - Air Venturi Carbon Fiber Tank, 98 Cu Ft 4500 psi, 98 cu ft.
I am still haveing a hard time choosing one
Any help would be appreciated Thanks..
 
My advice would be to get one with a cga347 valve (same as firefighter tanks) as they are the easiest to find a fill station for. The Din 300 valve they use on some the tanks sold by air gun shops seems to not be that common (at least where I live).

most scuba tanks are 3000psi so the dive shops near me use Din200 but find out what your local fill station uses. Beyond that, a tank is a tank.

consider buying a used scba tank if you want to save some cash. eBay is full of them. I currently have three 30 minute scba tanks as they are easier to carry to the range than one hour tanks.
 
I agree with zebra I love my SCBA and it is free to fill at every fire-station I have been to. Plus it gives you a chance to brag about or maybe even show off the goods. I bought a 45min bottle from ebay with 5 years left on it I just had to pay 20 bucks for the hydro so for the bottle hydro testing and the valve to hook up to my guns it was 220 bucks.