Fernox Copal, or what?

[alexp.1]

HW/CH: Baxi Barcelona & Heatrae Sadia Megaflo CL250
Rads: 17x (all double-panel)

I want to add a shot of inhibitor. Baxi manual says use Fernox Copal, so I go to the Fernox website, where there is no mention of this product!

I'm confused. Do I use:

1. Super Concentrate Protector
2. Super Concentrate Restorer
3. Alphi-11
4. MB-1

The boiler heat exchanger is aluminium, so I need something suitable...

Thanks

 

[ChrisR]

Fernox used to say use Copal for Al containing boilers but the products evolved over the years, so you can use MB-1 (and I think their other inhibitors) for AL now. The boiler people may be covering their back in case there are old stocks out there.
I daresay the website will confirm.

 

[nstreet]

I went to the local plumbing merchant the other day for some system cleaner, looking for Fernox suplerfloc, he says that he sells hardly any Fernox products these days as most people want Sentinel.