I'd love to know this too...
I've recently ordered H20-220 Edge kit from Swifttech.
But if the kill coil is no good after some months, I may consider this tubing.
It PT Nuke that we are talking about really, and you don't need it if you are using a kill coil.
A silver kill coil will continue to work until it dissapears, which might take a few decades if you are just using distilled water with it
