The Advanced Water Oso hot water expansion vessel 5.3 Litre is normally spherical in shape and contains a membrane or bladder. It will have a thread on one end and on the other end there will be a valve which can be used for testing pressure or to re-instate the designated pressure required for the vessel.

Brand Name	Advanced Water
Colour	None
Material	None
Manufacturer Model No	115800
Wear Type	None
Type	Expansion Vessel
Certifications Met	None
Country of Origin	None
Protects From	None
Waterproof	None
Number of Pockets	None
Designed for	OSO cylinders
Capacity	5.3 L
Supplier Part Number	443-146-0531
Range Description	Oso