How suitable is this heating element? (Ebay)

[al_shine]

Hello everyone.

Looking to put internal heating on a keg.

I've been reading through making controllers and stuff like that.

Then I found a listing for this four branch heating element ( )

My thought is to switch each of the four elements individually with standard rocker switches (of proper rating) in order to get 4 power settings.

It seems from the main site that might work, if less elegantly than a power controller.

My other concern is if it would be too difficult to mount that funny square bulkhead onto my round keg.

Thanks alot, gents.