4-Stage, 100 GPD Reverse Osmosis Replacement Cartridge Kit with Pentair Membrane



ROK-4M-100BET includes the following standard size replacement cartridges for a 4-Stage, 100 GPD Reverse Osmosis System like the one shown below. All cartridges in this kit are NSF Certified.

Pentair is the largest brand in the water industry with rejection rates that are close to Filmtec.

4-Stage Reverse Osmosis System

4-Stage Reverse Osmosis System

Additional information

Gallons Per Day


Parts / Accessories

  • Pentair 100 GPD Thin Layer Composite Reverse Osmosis Membrane

    Part#: TLC-100
  • CA Ware 10″ x 2-1/2″, 1, 5 or 10 Micron Carbon Block Filter Cartridge – 10 Micron

    Part#: CBC10-10
  • AICRO Inline GAC Filter/RO Post Filter

    Part#: AICRO-NSF
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