In engineers stock check availability prior to purchase
This part fits the following 4 appliances (sorted alphabetically):
Saunier Duval THELIA 623 (BEFORE CE)
Saunier Duval THELIA 623 NC (AFTER CE)
Saunier Duval THELIA 623 NC (BEFORE CE)
Saunier Duval THEMIS 223 (CE)