Correct replacement expansion vessel

[Makingtrax]

I have a faulty Zilmet Ultra Pro 18 litres in white (3Bar preset, 10Bar max working, -10 to 99C) vertically mounted above my Fabdec unvented electrical water heater. I'm trying to find a replacement but my local plumb centre tells me I've got to buy a 19 litre blue Ultra Pro ( 2Bar preset). They say the white ones are the Hydro Pro??
Does anyone know the significance of the colours on these Zilmet expansion vessels and why I can't find an exact replacement (if they still make them).
Thanks in advance.

 

[SimonG]

Ask somewhere else, plumb centre will take your eyes out. And you do have your unvented ticket?

 

[Makingtrax]

Ask somewhere else, plumb centre will take your eyes out. And you do have your unvented ticket?

Thanks Simon but I've tried other places and online merchants but can't locate a white Ultra Pro. No I don't have the unvented ticket but won't be fitting the cylinder myself.

 

[SimonG]

Have you tried fabdec directly?

Fabdec Ltd Grange Road
Ellesmere
Shropshire
SY12 9DG
UK
Tel: +44 (0) 1691 627200
Fax: +44 (0) 1691 627222
Email: [email protected], -2.8965176

 

[SimonG]

or Heating World of Spares in Crook

 

[Makingtrax]

Have you tried fabdec directly?

Fabdec Ltd Grange Road
Ellesmere
Shropshire
SY12 9DG
UK
Tel: +44 (0) 1691 627200
Fax: +44 (0) 1691 627222
Email: [email protected]52.9104172, -2.8965176

Actually that's a good idea because I'm beginning to think that maybe the 'white' Ultra Pro comes with the water heater and can't be bought separately. Thanks!!