Description
The Waterite Black Max 75 GPD Encapsulated Reverse Osmosis Membrane is a high-performance RO replacement element designed to deliver up to 75 gallons per day (GPD) of purified water when installed in compatible reverse osmosis systems. This fully encapsulated membrane uses advanced thin-film composite (TFC) separation technology to significantly reduce total dissolved solids (TDS), dissolved salts, heavy metals, and other contaminants, producing cleaner, better-tasting drinking water.
Encapsulation simplifies installation and minimizes leaks by integrating the membrane element with quick-connect fittings — eliminating the need to handle loose membrane components in many residential RO housings.
Key Features
- 75 GPD Rated Capacity – Produces up to ~75 gallons of purified water per day under typical residential conditions (actual output varies with feed pressure and temperature).
- Fully Encapsulated Design – Integrated 1/4″ quick-connect connections make installation faster and reduce the risk of leaks compared with traditional loose-element membranes.
- TFC Reverse Osmosis Technology – Thin-film composite membrane offers high rejection of dissolved solids for excellent purification performance.
- Long-Lived Performance – Encapsulated design with crossflow action helps reduce fouling and extend membrane service life.
- Compact & Easy to Use – Standard footprint for many residential systems requiring 75 GPD membranes.
Specifications
- Model: Black Max 75 GPD Encapsulated Membrane (Part # R/O BME1812RE75)
- Rated Production: ~75 GPD (gallons per day)
- Membrane Type: Encapsulated Thin-Film Composite (TFC)
- Connections: Quick-connect 1/4″ fittings (both inlet and outlet)
- Dimensions: Typically ~2.5″ diameter × ~11″ length (varies by manufacturer)
Compatibility
- Designed for Waterite Vectapure NX RO systems and other RO units that accept encapsulated 75 GPD membranes with quick-connect fittings.
- Fits many residential reverse osmosis housings that require a 75 GPD element.
- Check your system’s specifications before purchase to confirm proper fit and connection type.
Applications
- Residential RO Drinking Water Systems – Primary membrane for under-sink or countertop RO units.
- Point-of-Use Water Treatment – Produces cleaner drinking and cooking water by reducing dissolved contaminants.
- Pre-Treatment for Specialty Filters – Ideal before remineralization or UV stages for comprehensive water quality improvement.
Maintenance & Replacement
- Replace every 2–3 years depending on water quality, feed pressure, and usage.
- Always change pre-filters (sediment and carbon) before the membrane to protect it and extend life.
- When installing a new membrane, flush and sanitize the system according to manufacturer instructions.
Why It Matters
The membrane is the heart of an RO system — it does the actual separation of clean water from dissolved pollutants. A high-quality encapsulated membrane like the Black Max 75 GPD helps ensure consistent purified water production, easier maintenance, and fewer leaks compared to conventional loose membranes.

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