The GPD Membrane 4x21 is a high-performance reverse osmosis membrane designed for saltwater aquarium enthusiasts who demand the highest purity water. This true thin film composite (TFC) model boasts an impressive output of up to 1000 gallons per day and offers a stabilized salt rejection rate of 98.6%, ensuring that your reef tank receives the cleanest possible water supply. Installation requires care when removing the inlet cap, which fits very tightly; using a rubber mallet at a 45-degree angle can help loosen it before manual removal. This membrane is ideal for maintaining pristine conditions in any saltwater aquarium setup.
| Manufacturer | AquaFX |
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GPD Membrane 4x21
RO/DI Systems
Reference reading: Species guide on Codexery
Species guides on Codexery
- Yellow tang — Scientific name: Zebrasoma flavescens · Family: Acanthuridae source
- Regal blue tang — Scientific name: Paracanthurus hepatus · Family: Acanthuridae source
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