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: If you change the GPD rating of your membrane (e.g., upgrading from 50 to 100 GPD), you must also replace the flow restrictor to match. Recommended Products & Brands

Based on expert reviews and industry standards, the following brands are highly rated for reliability: The SHOCKING Truth About Reverse Osmosis Membranes

When selecting a replacement, confirm these five essential specifications:

: This is the "Gallons Per Day" capacity. Common residential ratings are 50, 75, or 100 GPD.

Purchasing a reverse osmosis (RO) membrane requires matching the specific requirements of your current water filtration system to ensure compatibility and performance. The membrane is considered the "heart" of the system, responsible for removing up to 99% of dissolved solids. Quick Buying Guide

: Thin Film Composite (TFC) is the modern standard for high rejection (96-99%).

: Ensure the membrane can handle your local water's Total Dissolved Solids. Residential units typically manage TDS below 2,000 ppm.

: Standard residential membranes are typically 1.75" x 11.75" and fit 2" x 12" housings.