Replacement Cartridge for Scaltrol SC-50 and HSC-50

The RSC-50 is the the refill cartridge for the SC-50 or HSC-50 unit.


SKU: RSC-50 Category:



The RSC-50 is the the refill cartridge* for the SC-50 or HSC-50 unit. Simply use the wrench to unscrew the housing, pull out the old cartridge and drop in the new and you are done! You can tell when a cartridge is nearing the end as the white area will gradually get closer to the bottom. When you have about 1/2″ left, is a good time to order the refill so you have it available.

*Cartridges are considered consumables and are not covered under warranties.

Energy Savings

A layer of scale 1/4″ on a heating element will decrease the efficiency and will subsequently increase your energy bills by up to 40%. Scaltrol stops mineral scale by introducing a measured amount of sequestrant into the water. The mineral molecules, which have a positive charge, are attracted to and held in suspension by the negative charge of the sequestrant. The mineral molecules are unable to join together, so scale is unable to form.

Additional information

Weight 1.85 lbs
Dimensions 11.4 × 5.7 × 5.3 in

Water Treatment




Safety Data Sheet
Installation Instructions
Scaltrol Routine Maintenance