Replacement Water Filter Replacement Set for 4 Stage Reef-Aquarium Deionized Reverse Osmosis Water Filter System; Membrane Not Included pH Pouches Assortment 20/Box it's a sign your source

it's a sign your source water has higher sediment or chlorine levels than average—consider adding a 5-micron sediment pre-filter upstream to extend the carbon block's life

Standard 20-inch housings

Compatible with commercial reverse osmosis systems using 4-inch diameter

while the return valve design ensures filtered water stays isolated from the municipal supply line

Replacement Water Filter Replacement Set for 4 Stage Reef-Aquarium Deionized Reverse Osmosis Water Filter System; Membrane Not Included pH Pouches Assortment 20/Box it's a sign your sourceThis 3 piece replacement filter set keeps your 4 stage reef aquarium reverse osmosis deionization system producing ultra pure water at zero to near zero TDS levels. Includes sediment pre filter, carbon block pre filter, and color changing DI cartridgemembrane sold separately. SPECIFICATIONS What's Included in This Replacement Set Sediment Pre Filter 5 Micron Removes dirt, rust, and particulates Carbon Block Filter 5 Micron Removes chlorine and