1812 50 GPD Vontron Reverse Osmosis Membrane

R182.16

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Independently developed by VONTRON, the RO element ULP1812-50 is designed for the treatment of low-salinity water resources such as tap water, well water, etc. Working under extra-low pressure, it is applicable to water purifying devices in residence, hospital, and laboratory.

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Vontron 1812 50 GPD RO Membrane – Compact 1.8″×12″

nThe Vontron 1812 50 GPD RO Membrane is a compact, high-quality reverse osmosis element sized 1.8″ diameter × 12″ length (designated “1812”), specifically engineered for residential or small point-of-use systems. It delivers approximately 50 gallons per day (GPD) under standard test conditions, with a stable salt rejection of around 97%. Designed for low-salinity sources such as municipal tap water or shallow wells, this membrane is ideal when space is limited but water purity remains essential.
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Key Features

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  • Compact 1.8″ × 12″ (1812 format) — perfect for tight installations.

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  • Rated output: ~50 GPD (~190 L/day) under test conditions.

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  • Salt rejection: ~97% stable; minimum ~96% under standard conditions.

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  • Low-pressure design enabling integration into cost-sensitive or smaller systems.

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  • Suitable for residential uses: under-sink, countertop, small lab or office water purification.

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Technical Specifications

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Parameter Value
Model ULP1812-50
Format 1.8″ diameter × 12″ length
Rated Permeate Flow ~50 GPD (~190 L/day)
Stable Salt Rejection ≈ 97%
Minimum Salt Rejection ≈ 96%
Test Conditions 60 psi (~0.41 MPa), 25 °C, 250–500 ppm NaCl, pH ~6.5–7.5
Maximum Feed Pressure ~200 psi (~2.0 MPa)
Maximum Feed Temperature 45 °C
Maximum SDI (Silt Density Index) ≤ 5
Free Chlorine in Feed < 0.1 ppm
Feed pH Range (Operation) 3 – 10
Feed pH Range (Cleaning) 2 – 11
Maximum Pressure Drop Single Membrane ~10 psi (~0.07 MPa)

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Why Choose the Vontron 1812 50 GPD RO Membrane?

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Opting for the Vontron 1812 50 GPD RO Membrane means choosing a space-saving, high-efficiency RO element that delivers meaningful purification in a compact format. Because it’s designed for low-salinity feed water and works at modest pressure, it’s ideal for residential installations where footprint and cost matter. The strong rejection rate ensures water quality without needing oversized systems.

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Installation & Maintenance Tips

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  1. Pre-treat feed water: ensure SDI ≤ 5 and free chlorine < 0.1 ppm to protect membrane life.

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  2. On first use, flush the new membrane per manufacturer guidelines; discard early permeate.

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  3. Monitor the permeate flow and salt rejection; if performance drops significantly, check for fouling, scaling or damage.

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  4. Maintain temperature, pressure, and pH within specified limits to prolong membrane lifespan.

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  5. If the membrane will be unused for some time, store it wet or in an approved preservative solution.

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Shipping policy

At our Company, we understand the importance of timely delivery. We offer a variety of shipping options to suit your needs, including standard, expedited, and express shipping. Our dedicated team works diligently to process and dispatch your orders promptly, aiming to deliver them to your doorstep within the estimated timeframe.

We strive to provide fast and reliable shipping to our customers. Here\\\’s everything you need to know about our shipping process:

  • Dispatch: Within 24 Hours
  • Free shipping across all products on a minimum purchase of $99.
  • International delivery time 5 to 7 business days
  • Cash on delivery might be available
  • Easy 30 days returns and exchanges

Please note that delivery times are estimates and may vary depending on factors such as product availability, destination, and carrier delay

Returns policy

We want you to be completely satisfied with your purchase from our website. If for any reason you are not entirely happy with your order, we\\\’re here to help. Certain exclusions and conditions may apply, so we encourage you to review our detailed return policy for more information. Rest assured, our goal is to ensure your complete satisfaction with every purchase you make from our website

  1. Returned items must be unused, undamaged, and in the same condition as received.
  2. Original tags, labels, and packaging must be intact and included with the returned item.
  3. Proof of purchase, such as your order confirmation or receipt, is required for all returns.

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