Part number : KPG0202 - flush mount or top mount gas cooktop.
Part number : ICG0202 - integrated in an 4mm inox worktop.

Burners:
1x 1.7 kW Standard burner at the front.
1x 1.0 kW Simmer burner at the back.

Dimension cooktop : 380x520x4 mm in brushed inox 304
Dimension housing : 350x485x95

Downloads:
The dimensions of the cut out for the flush mount cooktop are listed in the general KOONAKA leaflet.