RTL 120 GPD High-Power RO Membrane — More Power, More Pure Water, Same High TDS Capability
When a standard 100 GPD RO membrane is not producing enough purified water for your household or light commercial need — but you are not yet ready for a full commercial system — the RTL HR2012-120 is the answer. At 120 GPD, it produces approximately 454 litres of purified water per day under standard conditions, which is 20% more output than a 100 GPD element. For a larger family home, a small office, a mosque, a school water cooler, or a small food business that needs continuous clean water supply, this increased capacity makes a measurable daily difference.
Like the entire RTL HR series, the HR2012-120 is specifically engineered for high TDS feed water up to 5000 ppm — making it the correct choice for Pakistan's most challenging water conditions in Multan, Bahawalpur, Karachi, D.G. Khan, and Sukkur, where standard membranes underperform and wear out faster.
RTL HR2012-120 is currently the only NSF-certified 120 GPD RO membrane available in Pakistan. No other 120 GPD option in the market carries NSF/ANSI Standard 58 certification — making this the sole verified-performance choice at this capacity.
Understanding the 2012 Format — Why Compatibility Matters
The model number HR2012-120 encodes the membrane's physical dimensions: 2012 means 2.0 inch diameter × 12 inch length. This is different from the standard 1812 format (1.8 inch × 12 inch) used in most basic 100 GPD domestic RO plants.
Here is how to quickly check your membrane housing format:
- Method 1 — Check the label on your existing membrane. It will say 1812 or 2012 (or the full dimensions like 1.8" × 12" or 2.0" × 12").
- Method 2 — Check the specification label on your RO plant unit — it lists the membrane format.
- Method 3 — Measure the membrane housing canister diameter. A 1812 housing has an internal diameter of approximately 2 inches outer housing. A 2012 housing is slightly larger.
- Method 4 — Contact Axtron Pakistan via WhatsApp with a photo of your RO plant label. We will confirm compatibility before you order.
100 GPD vs 120 GPD — When Should You Choose the Higher Capacity?
| RTL 100 GPD HR1812-100 | RTL 120 GPD HR2012-120 | |
| Daily output (est.) | ~380 litres / day | ~454 litres / day |
| Element format | 1812 (1.8" × 12") | 2012 (2.0" × 12") |
| Best for | Standard family home (4–6 people) | Larger family, small office, mosque, school |
| NSF Certified | Yes — NSF/ANSI 58 | Yes — NSF/ANSI 58 |
| Max feed water TDS | Up to 5000 ppm | Up to 5000 ppm |
| Salt rejection | 99% | 99% |
| Price | Rs. 4,000 | Rs. 5,000 |
| Housing size needed | Standard 1812 housing | 2012 housing — confirm before ordering |
Who Should Buy the RTL HR2012-120?
- Larger Family Homes (8–12 people) — A standard 100 GPD system may struggle to meet the drinking water needs of a larger household, especially in summer when consumption increases. The 120 GPD element gives the same system 20% more daily output without upgrading the entire RO unit.
- Small Offices and Workplaces — An office with 15–25 employees needs more purified water than a typical home RO plant provides. The 120 GPD capacity bridges the gap between domestic and commercial RO systems.
- Mosques and Community Centres — Shared water dispensers used by a congregation or community benefit from higher-capacity membranes to maintain consistent supply through peak usage periods.
- Small Food and Beverage Businesses — Cafes, juice stalls, small restaurants, and bakeries that use purified water for food preparation need a higher output than a basic 100 GPD domestic membrane provides.
- Schools and Clinics — Environments where water is consumed throughout the day by a variable number of people. The 120 GPD capacity ensures the storage tank stays full.
- Existing 120 GPD RO Plant Owners — If your RO plant is rated at 120 GPD and needs a membrane replacement, the RTL HR2012-120 is the direct replacement element.
Performance in Pakistan's High TDS Water Conditions
Pakistan's water quality varies dramatically across regions, and the RTL HR series is engineered to handle the full range. Here is how the HR2012-120 performs in Pakistan's most challenging water areas:
| City / Region | Typical TDS (ppm) | HR2012-120 Performance | Standard Membrane Performance |
| Multan / Bahawalpur | 1000–2500 ppm | Excellent — within rated range | Poor — overloaded, faster degradation |
| Karachi (coastal areas) | 600–1500 ppm | Excellent | Acceptable but shorter life |
| D.G. Khan / Sukkur | 1500–3500 ppm | Good — within 5000 ppm limit | Inadequate — not recommended |
| Faisalabad / Lahore | 400–900 ppm | Excellent | Good |
| Islamabad / Rawalpindi | 200–500 ppm | Excellent — maximum output | Excellent |
Key Features of the RTL HR2012-120
- 120 GPD High-Power Output — Produces approximately 454 litres of purified water per day, 20% more than a standard 100 GPD element. Meets the demands of larger households, small offices, and light commercial use.
- 2012 Format Element (2.0" × 12") — Larger diameter than the standard 1812 format, providing greater membrane surface area for increased flow rate and output volume.
- 99% Salt Rejection Rate — Removes 99% of dissolved salts, heavy metals, arsenic, fluoride, nitrates, and other contaminants regardless of input TDS level.
- High TDS Capability Up to 5000 ppm — The HR (High Rejection) designation ensures consistent 99% rejection performance even with Pakistan's most challenging bore water and groundwater conditions.
- NSF/ANSI Standard 58 Certified — Independently tested and certified by NSF International. The only 120 GPD membrane in Pakistan with this certification.
- Thin-Film Composite (TFC) Polyamide Element — Premium membrane technology delivering long service life, high flow recovery, and stable rejection performance over time.
- RTL Professional Manufacturing — Produced by Ningbo RXHL Technology Co., Ltd., a national high-tech enterprise with 30+ patents and global export to professional water treatment markets.Installation Guide for the RTL HR2012-120
Step 1: Shut off the feed water supply completely. Open the RO faucet to release all pressure from the system before touching any housing.
Step 2: Locate the membrane housing — the tallest cylindrical canister in your RO unit. For a 120 GPD system, this will be a 2012-format housing (slightly larger than standard 1812 housings).
Step 3: Use a membrane wrench to unscrew the housing cap. Remove the old membrane element and dispose of it.
Step 4: Remove the RTL HR2012-120 from its packaging. Verify the two black O-rings on the end cap are correctly seated in their grooves. Apply a small amount of clean water to the O-rings for lubrication.
Step 5: Insert the membrane into the housing with the correct flow direction — the brine end (with the single port) goes in first. Follow the FLOW arrow on the RTL label.
Step 6: Replace and firmly tighten the housing cap. Restore feed water supply. Check all housing connections for leaks.
Step 7: Run the system for 30–60 minutes and discard the initial output. This flushes manufacturing preservatives and conditions the membrane for drinking water production.
Not confident with membrane installation? Axtron Pakistan provides professional RO membrane replacement service across Multan, Lahore, and other major cities. Contact us via WhatsApp before ordering if you have any compatibility questions.
Technical Specifications
Specification Detail Brand RTL (Ningbo RXHL Technology Co., Ltd.) Model Number HR2012-120 Series HR — High Rejection for High TDS Water Membrane Type Thin-Film Composite (TFC) Polyamide Rated Capacity 120 GPD / approx. 454 litres per day Salt Rejection Rate 99% (tested at 500 ppm NaCl, 65 psi, 25°C) Maximum Feed TDS Up to 5000 ppm Element Format 2012 — 2.0 inch diameter × 12 inch length Housing Compatibility 2012 membrane housing (120 GPD RO systems) NSF Certification NSF/ANSI Standard 58 — Tested and Certified Manufacturer Ningbo, Zhejiang, China Price Rs. 5,000 Delivery Nationwide COD — all cities Pakistan Frequently Asked Questions
Q: Will the HR2012-120 fit my standard domestic RO plant?
A: Only if your RO plant is a 120 GPD system with a 2012 membrane housing (2.0 inch diameter). Most standard home RO plants in Pakistan are 100 GPD with a 1812 housing (1.8 inch diameter) — these will NOT fit the HR2012-120. Check your existing membrane label or the sticker on your RO unit before ordering. If your system is 100 GPD, you need the RTL HR1812-100 instead. If you are unsure, contact Axtron Pakistan via WhatsApp with a photo of your RO plant.
Q: What is the practical difference between 100 GPD and 120 GPD daily?
A: A 100 GPD membrane produces approximately 380 litres per day. A 120 GPD membrane produces approximately 454 litres per day. That is roughly 74 extra litres of purified water every 24 hours — enough to make a real difference for a large family, a small office, or any setting where the RO storage tank runs low before the day ends. The 120 GPD is the right choice when your 100 GPD system is not keeping up with your water consumption.
Q: Can the HR2012-120 handle Multan or Bahawalpur groundwater above 1500 ppm?
A: Yes. The HR2012-120 is rated for feed water up to 5000 ppm TDS. Multan and Bahawalpur groundwater typically reads 1000–2500 ppm, well within the HR series' operating range. The 99% salt rejection rate is maintained consistently even at these high TDS levels, which is why the RTL HR series is the correct specification for Pakistan's hard water regions.
Q: How often should I replace the 120 GPD RTL membrane?
A: Replacement is recommended every 12–18 months under normal use in Pakistan's high TDS conditions. Monthly TDS monitoring is the most accurate method — check both your input water and the RO output. If output TDS rises above 50 ppm, or the rejection rate drops below 90% of your baseline reading, replace the membrane. Use any TDS meter from Axtron's water testing range for monitoring. Consistent monitoring extends membrane life by catching issues early.
Q: Is there a 150 GPD RTL membrane if I need even more output?
A: Yes. Axtron Pakistan stocks the RTL 150 GPD membrane as well. The RTL range available at Axtron Pakistan includes 100 GPD, 120 GPD, 200 GPD, 300 GPD, and 400 GPD. If your requirement exceeds 120 GPD, browse the full RTL membrane range on our website or contact us for guidance on the right size for your system.
Q: Does Axtron offer 120 GPD membranes from other brands?
A: Currently, the RTL HR2012-120 is the only 120 GPD membrane Axtron stocks — and it is the only NSF-certified 120 GPD option available in Pakistan. For 100 GPD, Axtron carries membranes from multiple brands including Axtron, Filmtech, Oasis, HiTech, RTL, Suro, and GT. For 75 GPD, we carry Axtron and HiTech brands. Contact us or browse the full membrane range on axtronpakistan.com.