The OSO 15 series slimline cylinder is based on the 20 Series cylinder. At only 430mm diameter, it will fit into the most compact of spaces.
 
All details apart from the dimensions are similar to the OSO 20 Series RI/RD 125 unit. The valve gear and installation instructions are identical.
 
The 15 series cylinder is available in direct and indirect heating styles with a bubble top capacity of 125 litres. The cylinder can be fully flooded to 150 litres if required with the addition of a potable water expansion vessel.
 
For further features and benefits information please see the 20 series product pages.