The Invacyl unvented cylinder is designed to work using it factory fitted electrical elements. Offering a smooth tube and high-efficiency coils as standard. Invacyl cylinders come with Callefi safety components and is supplied with screwed connections with compression fittings and features a sleek grey outer case. Our Invacyl cylinders have carefully been constructed using quality components and have been designed with performance in mind. Using our many years of involvement within the hot water

Brand Name	Joule