Converting D-D Co2 Cylinder

[Shnee]

Hi

I have the D-D Co2 system in my tank from these guys

http/www.charterhouse-aquatics.co.uk/catalog/co2-set-fresh-water-p-2435.html

and I am wondering has anyone converted this over to a FE at all as that seems loads cheaper and will last a lot longer ?

Thanks

I have also posted this is the Planted section as I was not sure which was most appropriate MOD's please feel free to delete the version you feel inappropriate.