Replacement Water Filter Set For 4 Stage Reef-Aquarium Deionized Reverse Osmosis Water Filter System Membrane Size:50 GPD 4 psi initial pressure drop

4 psi initial pressure drop

Fits standard 20" Big Blue filter housings from Pentek and compatible brands

Granular activated carbon compressed into a solid block delivers superior contact time and removes particulates

Prevents backflow contamination

Model Number Pentek 150367 PBH-420-1 Housing Material Polypropylene sump

Replacement Water Filter Set For 4 Stage Reef-Aquarium Deionized Reverse Osmosis Water Filter System Membrane Size:50 GPD 4 psi initial pressure dropComplete 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