The Vokera part is based around the diverter valve section. The diverter valve is a device that only appears in combi boilers. It allows the hot water to be redirected to the central heating (radiators, etc.) or to the hot water system (taps, etc.). This feature is what separates a normal boiler from a combi boiler due to the fact that a combi boiler wouldn't require a cylinder to provide heating and hot water.

Brand Name	Vokera
Colour	N/A
Material	N/A
Manufacturer Model No	DUMMY159
Wear Type	N/A
Type	Valve Head Shaft
Certifications Met	N/A
Country of Origin	N/A
Protects From	N/A
Waterproof	N/A
Number of Pockets	N/A
Waist Size	ae17ch38fx
ERP Rating	Not Applicable
Supplier Part Number	DUMMY159