Nature Pure® Ultrafine™ Cartridge™ Replacement cartridge for ‘Original Housing Style’ Nature Pure® model (see housing picture attached). Ultrafine™ replacement cartridge is rated for 500 gallons, at a flow rate of 0.5 gallons per minute. Nature Pure® Ultrafine™ purifier does not require chemicals or electricity. This is the replacement cartridge only and includes a new shear rod. Coldwater use only. *We recommend using an onboard and portable Dockside™ Pre-filter or Aqua Polish® filter on the incoming water source to elongate the life of your purification cartridge. NaturePure Ultra Fine Instructions Included: Cartridge Replacement Sear Rod Intro video to the NaturePure Ultrafine Replacement Cartridge
