
and there is a R-747(R-747II) model which cost about $100 USD more in retail,

Let's see what is the main difference between these 2 machines.
According to the manufacturer's information, the main difference is the filtering system.
The R-747 which is high end model, does comes with Sakura's patented filtering system which contains mesh filters, grills to hold filters and to mount round oil cup collector.
also a soot shade is not with R-727 model which is not a big of deal for most of us.
I will write more how to mount or change it with some pictures soon
Updated: Nov/16/2013
We now offer a complete set to convert SAKURA R-727 to accept the filters..
Updated: Nov/16/2013
We now offer a complete set to convert SAKURA R-727 to accept the filters..