Part number 
SPPH0201
To ensure adherence to local laws on condensate (which differ in varying jurisdictions), it is recommended installers check granulate levels at least once a year and replace as needed with Sauermann S
Part number 
SI2958.003

Replacement detection unit.

Part number 
Si2958

Replacement detection unit for use with Sauermann Si-30 and Si-33 mini condensate pumps.