Thanks for the kind words.
@PP.
I have bought this on my earlier days of brewing this is the one I use
http://newstore.vvessel.com/ .It's a love and hate item, you can brew with safety 19 liters of beer otherwise it needs a blowoff valve construction .It's total volume is 25 liters.
If you have a special place for brewing ,it does the job very well also when using kegs it's very convinient .Of course the main advantage is that you do secondary in the same vessel and the exposion of the wort to air is minimal during taking off the yeast trub.On the other hand it's somehow impractical if you have the fermenter in a diferent place than the place you brew ,you will need a second bracket or a kind of stand to move it around .Also it's shape and the mounting way it uses ,makes the fitting of it in small fermentation freezer almost imposible.
Personaly after many brews (because I live in a small apartment and also bottling my beers)I can live without it .