Replacement Water Filter Set For 4 Stage Reef-Aquarium Deionized Reverse Osmosis Water Filter System Membrane Size:75 GPD and hand-tighten the housing back

and hand-tighten the housing back into place

Test Points 0

Replace the AF-20-2115-BB cartridge every 6 to 12 months depending on water quality and household usage

Works with all major RO system brands using John Guest or compatible push-fit drain connections

and 1 black extension

Replacement Water Filter Set For 4 Stage Reef-Aquarium Deionized Reverse Osmosis Water Filter System Membrane Size:75 GPD and hand-tighten the housing backComplete Replacement Filter Set 4 Stage Reef Aquarium RO DI Replacement Filter Set Everything you need to maintain zero TDS water for sensitive reef systems 50, 75, & 100 GPD Membrane Color Changing DI Zero TDS Output Full System Refresh This complete replacement set includes all four filtration stages for the Isopure Water 4 Stage Reef Aquarium RO DI system. The combination of sediment, carbon block, reverse osmosis membrane, and deionization