$20.00
A 100 GPD (gallons per day) reverse osmosis membrane is one of the most commonly used membrane sizes in residential RO systems. It offers an excellent balance between production speed and contaminant rejection, making it suitable for both traditional under-sink RO systems and select countertop RO applications.
This membrane is fully compatible with MyWaterClub Countertop RO systems and is commonly used when a moderate flow rate is needed without sacrificing water quality. It is also widely used in standard under-sink RO systems with or without a storage tank.
Compared to lower-GPD membranes, a 100 GPD membrane provides faster water production while maintaining strong rejection performance, making it a popular choice for everyday household drinking water needs.
Like other TFC (Thin Film Composite) reverse osmosis membranes, a 100 GPD membrane removes contaminants by rejecting dissolved substances at the molecular level. Instead of targeting individual chemicals, the membrane reduces entire classes of dissolved impurities, allowing it to reduce thousands of potential contaminants that may be present in water.
Typical reductions include:
Actual performance depends on feed water quality, pressure, temperature, and proper pre-filtration. Not all contaminants are present in every water source.
GPD (Gallons Per Day) refers to the maximum amount of purified water the membrane can produce under ideal laboratory conditions (approximately 77°F / 25°C water temperature, ~60 psi pressure, and low TDS).
In real-world residential use, production is typically lower due to variations in water temperature, pressure, and feed water TDS.
| Membrane Rating | Approx. Gallons per Hour* | Best Use |
|---|---|---|
| 75 GPD | ~3.0 – 3.5 gal/hr | Under-sink RO systems & countertop RO systems |
*Actual production varies based on feed water pressure, temperature, TDS, and system configuration.
A 100 GPD membrane is an excellent choice for users who want faster water production while maintaining strong filtration efficiency. It is often selected as a middle-ground option between slower, high-efficiency membranes and higher-GPD membranes designed for maximum output.
This membrane may be ideal if you:
This membrane uses the standard 1812 size, making it compatible with a wide range of residential RO systems.
Fits systems using:
Performance varies based on feed water conditions, pressure, temperature, and system configuration.
Brand: MyWaterClub
Reverse osmosis membranes reduce contaminants by rejecting dissolved substances at the molecular level.
The table below shows typical contaminant categories reduced by a standard RO membrane and
average reduction ranges commonly observed in residential systems.
| Contaminant Category | Examples | Average Reduction* |
|---|---|---|
| Total Dissolved Solids (TDS) | Overall mineral, contaminants & dissolved solids | 95–99% |
| Fluoride | Fluoride ions | 90–98% |
| Heavy Metals | Lead, arsenic, mercury, chromium | 95–99% |
| Nitrates / Nitrites | Nitrate (NO₃), nitrite (NO₂) | 85–95% |
| Dissolved Salts & Minerals | Calcium, magnesium, sodium, potassium | 95–99% |
| Inorganic Contaminants | Sulfates, phosphates, chlorides | 95–99% |
| Some Synthetic Compounds | Select dissolved industrial or agricultural residues | 80–95% |
*Reduction percentages represent typical performance ranges for standard residential thin-film composite (TFC)
reverse osmosis membranes. Actual results vary based on feed water quality, pressure, temperature,
membrane condition, and proper pre-filtration. Not all contaminants are present in every water source.
| Weight | 0.5 lbs |
|---|---|
| Dimensions | 12 × 2 × 2 in |
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