RS-1SG Replacement Cartridge/Filter (788000)


The RS-1SG (788000) replacement cartridge/filter is certified to remove unwanted waterborne contaminates (like bacteria, e-coli, viruses, heavy metals, chemicals and more) while leaving dissolved minerals and electrolytes essential to good health and good taste.

The RS-1SG cartridge/filter is designed for the following models

  • Seagull IV® X-1F under sink water purifier
  • Seagull IV® X-1B inline water purifier
  • Seagull IV® X-1D counter top water purifier
  • First Need® Base Camp Replacement Cartridge