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Downflow operation is preferred
This Culligan Compatible Membrane by AMI is a 36 gallon per day membrane that fits Culligan AC15 & AC30 model RO systems
AMI 75 Gallon per Day Home RO Reverse Osmosis Membrane
Pentek ST-3
feed water pH 7-8 and 15% recovery
RO Membrane & System Preservative Cartridge | 20" Big Blue Size SDI Test Kits Downflow operation is preferredRO Membrane and System Preservative Cartridge for 20 Inch Big Blue Housing Preserve Watermakers, RO Systems & Membranes During Periods of Non Operation Model Number: C C2520 A88 Cartridge Size (Nominal): 20 inch Big Blue Cartridge Dimensions: 4. 5" OD x 20"L Fits Housing: 20 inch Big Blue (#20 BB) (Housing Outside Dimensions Approximately 7. 5"OD x 22"L) Description: Membrane Preservative for Thin Film RO, Seawater RO, Microfiltration, Ultrafiltration
