Calpump Biological Filter

• Compact, small and efficient with twist-off top for easy cleaning.
• Standard 1" MNPT fitting is adaptable to any new or existing system.
• 5 position valve with the following modes:
  • Normal - biological filtering.
  • Stop - for routine maintenance
  • Bypass - used to medicate or just to circulate
  • Back Flush - for quick filter cleaning
  • Pond Drain - for easy water change.
  
  Other Features:
  • Optional Internal UV Clarifier(s) for clean clear water.
  • Optional Internal Heaters(s) to help keep filter from freezing and to aid in keeping beneficial bacteria alive.
  • Can be used above or below ground, making it easy to conceal.
  • Easy to clean foam filter media.
  • UV Resistant with standard 1 ½" fitting that is adaptable to any new or existing system.