Product Information: The pressure gauge allows the user to see a visual representation of the current pressure within the heating system. drops often can often be due to a leak somewhere on your heating system.
This part is present in 10 different boilers in the Saunier Duval range including the Saunier Duval THEMIS 223 (CE) , THELIA 623 NC , THELIA 623 , THELIA 23 E NC , THELIA 23 .