The premium 250 GPD reverse osmosis membrane — NSF certified, made in Taiwan by Clean Pure. The highest-output, highest-quality membrane in the MyWaterClub lineup. Fits countertop and under-sink systems.

250 GPD RO membrane — application & use

This is the premium 250 GPD reverse osmosis membrane in the MyWaterClub lineup — the same high output as the standard TW-2012-250, but manufactured by Clean Pure (Swunyuan Filmtech, Taiwan) and carrying NSF certification. It’s the only membrane in the catalog with a third-party certification mark, making it the top choice for buyers who want verified performance.

It produces water at the same rate as the standard 250 GPD — roughly 10.4 gal/hr under ideal conditions — and fits all MyWaterClub countertop and under-sink RO systems (both 1812 and 2012 housings). Position it as the premium pick next to the standard 250 for buyers who value certified performance.

What it reduces

Like other TFC (thin-film composite) membranes, it works by rejecting dissolved substances at the molecular level — reducing entire classes of dissolved impurities rather than targeting individual chemicals. Typical reductions include:

• ✓Total Dissolved Solids (TDS)
• ✓Fluoride
• ✓Heavy metals (lead, arsenic, mercury, chromium)
• ✓Nitrates and nitrites
• ✓Dissolved salts and minerals (calcium, magnesium, sodium)
• ✓Many dissolved inorganic and synthetic compounds

Actual performance depends on feed-water quality, pressure, temperature, and proper pre-filtration. Not all contaminants are present in every water source.

What does “250 GPD” mean?

GPD (gallons per day) is the maximum purified water the membrane can produce under ideal laboratory conditions — roughly 77°F (25°C) water, ~60 psi pressure, and low TDS. In real-world home use, production is typically lower because temperature, pressure, and feed-water TDS all vary.

*Rated output reflects ideal lab conditions (GPD ÷ 24). Real-world production is typically lower and varies with feed-water pressure, temperature, TDS, and system configuration.

Why choose the NSF-certified 250 GPD?

This NSF-certified 250 GPD membrane combines the highest output with third-party verified performance. It may be ideal if you:

• ✓You want NSF-certified performance — independently tested, not just manufacturer-claimed
• ✓You want the fastest fill rate (250 GPD) with the confidence of a certified membrane
• ✓Your household has high daily demand and you want premium, verified quality
• ✓You’re upgrading from a standard (non-certified) membrane and want the best available

Compatibility & installation

Because it uses the standard 2012 size (and the same housing accepts 1812), it fits a wide range of residential RO systems:

• ✓Standard RO membrane housings (accept both 1812 and 2012)
• ✓MyWaterClub Countertop RO systems
• ✓Standard under-sink RO systems (tank-based or tankless)
• ✓A drop-in upgrade for systems originally built around a 75 GPD membrane (faster output, same 1812 fit)

Maintenance & replacement

• Typical lifespan: 2–3 years, depending on water quality and pre-filtration.
• Replace sooner if water production slows or TDS reduction drops off.
• Replacing sediment and carbon pre-filters on schedule helps extend membrane life.
• After installing a new membrane, run and discard the first batch of water, then let the system settle in for a few days before relying on your TDS reading.

Specifications

Typical contaminant reduction

Typical categories reduced by a standard RO membrane, with average reduction ranges commonly observed in residential systems.

*Ranges represent typical performance for standard residential TFC reverse osmosis membranes. Actual results vary with feed-water quality, pressure, temperature, membrane condition, and pre-filtration. Not all contaminants are present in every water source. This is membrane-technology reference data, not a certified per-unit claim.

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