Vado Flow/Diverter Catridge Clear Matt Johnstone's Trade Professional Undercoat is

Johnstone's Trade Professional Undercoat is a solvent-based undercoat paint that can be used for interior and exterior wood and metals

This design aims to enhance paint flow and deliver a smoother finish during application

it is not recommended for use on dense and hard wood species such as oak or teak

" all while maintaining a timeless quality

Vado Flow/Diverter Catridge Clear Matt Johnstone's Trade Professional Undercoat isIt allows the hot water to be directed to the heating system (radiators) or to the domestic hot water system (taps). This is what separates a normal boiler from a combi boiler due to the fact that a combi boiler would not require a cylinder to deliver heating and hot water.