H7 coils seem to be a little bit taller than the H1 and they don't last as long. They may be more suited for Fat Rabbit tank rather than Hellbeast. Still they give out good flavour.
Just bought this for my fat rabbit tank they are definitely worth the price for what they are, delivery came really quick and came on time definitely recommended for the quality and quantity
Been using these for years are, they have great flavour and even when you think the flavour is dropping off they burn through and the flavours back. I just give them a quick clean in the tank with a cotton bud and they last a very long time. Only the Falcon coil is on par.