CSM RE2521-BLN - 2.5" x 21"; 300 GPD TW-LE Replacement Reverse Osmosis Membrane Floor Cook/Cold; WHITE 120V } /* ---------- Section heading

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Fine Birm is optimized for residential applications where backwash flow is restricted compared to the regular Birm grade (A8007)

Female pipe threads

More frequent replacement needed for high sediment loads

CSM RE2521-BLN - 2.5" x 21"; 300 GPD TW-LE Replacement Reverse Osmosis Membrane Floor Cook/Cold; WHITE 120V } /* ---------- Section headingThe CSM RE2521 BLN is a 300 GPD commercial reverse osmosis membrane engineered for brackish and tap water applications under low pressure conditions, delivering reliable filtration while reducing energy costs. This 2. 5" x 21" Toray manufactured TW LE membrane maintains high rejection rates even at operating pressures lower than standard RO membranes. SPECIFICATIONS CSM RE2521 BLN Membrane Performance Data Daily Production 300 GPD Gallons per day