The water level which is used on the Astoria Argenta is the standard model of sight glass with espresso machine models of Astoria CMA. This can be found on every Astoria machine which has a sight glass.
The sight glass assembly is made out of a bottom and a top fitting, these are not the same items seen the bottom one has a nut installed. In-between these fittings you have the assembly of a gasket, washer and a fixing nut, these are located at the bottom and top fitting. The sight glass in the middle has a length of 170mm and a outer diameter of 11mm. It is possible that there is a small ball floating in the sight glass, this is done to make the water level easier visible.
At the back of the sight glass is a curved metal piece, this metal has been powder coated in white. To make the water level ball more visible.
