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Delivery and return
Delivery and return
Next day delivery in store
Buy before 6pm to receive your order next day.FREE
Next day delivery
Orders before 6pm from Monday to Saturday (or before 1pm on Sunday) will be delivered Next working day (except Northern Ireland and Highlands). Orders placed after 6pm (after 1pm on Sunday) or for Northern Ireland and Highlands will be delivered in 2 working days.29 USD
Drop Point
In 2-3 working days. Pick up your parcel in one of the many diferent collection points available and during a wide range of hours.39 USD
Same day delivery in London:
Place your order before 13:00 to get it today!. If you order later on, you’ll receive it the next day and if you order on Sunday, you’ll receive it the next working day.59 USD
Shipping Information
Shipping Information
SHIPPING
Complimentary ground shipping within 1 to 7 business days In-store collection available within 1 to 7 business days Next-day and Express delivery options also available Purchases are delivered in an orange box tied with a Bolduc ribbon, with the exception of certain items See the delivery FAQs for details on shipping methods, costs and delivery timesComposition and care
Composition and care
Characteristics of wood :
- Hard, compact , fiberous and porous
- Good wood gives a rich, warm and beautiful surface.
Wood is used for the construction of:
- Floor, Furniture, Walls
- Incidental furnishing (lampshades, picture frames)
- Kitchen & restaurant ware
Description
RO Membrane TW-4040-HF – High-Flow RO Element
The Puritech RO membrane TW-4040-HF is a high-flow reverse osmosis element designed to deliver reliable performance in water purification systems that require higher permeate output and excellent salt rejection. This membrane fits standard 4″ × 40″ housings and works well in domestic, commercial, and light industrial RO installations where quality potable water is needed quickly.
This membrane combines high rejection rates with strong output, making it a solid choice when you want both high-quality water and efficient production without overly complex system upgrades.
Performance & Benefits
The RO membrane TW-4040-HF is known for offering:
- High permeate flow: Designed to produce a larger volume of purified water than many standard 4040 membranes.
- Excellent salt rejection: Typically achieves stable rejection around 98% or higher, meaning significant removal of dissolved salts and TDS.
- Standard 4040 compatibility: Fits into most RO housings sized for 4″ × 40″ elements, making it easy to upgrade or replace.
- Broad application range: Works in systems from home purifiers to commercial plants requiring more output.
Because of its high-flow design and consistent salt rejection, this element is ideal when you need greater freshwater production without sacrificing water quality.
Technical Specifications
The following parameters represent typical performance for a high-flow 4040 HF membrane under industry test conditions:
| Specification | Details |
|---|---|
| Model | RO membrane TW-4040-HF |
| Membrane Size | 4″ × 40″ (standard) |
| Nominal Permeate Flow | ~2,400 GPD (~9 m³/day)* |
| Stabilized Salt Rejection | ~98 % |
| Test Pressure | ~150 psi (typical industry test) |
| Test Solution | 750 ppm NaCl, conditions vary* |
| Operating pH Range (Continuous) | ~3.0–10.0 |
| Max Operating Temp. | ~45 °C |
| Feed SDI (Max) | ≤ 5 |
| Free Chlorine Tolerance | < 0.1 ppm |
| Housing Compatibility | 4″ × 40″ membrane housings |
*Actual performance varies with feedwater TDS, temperature, and system pressure — real results may differ.
How It Works
Reverse osmosis membranes like the RO membrane TW-4040-HF use a semi-permeable barrier to separate water molecules from dissolved salts and impurities. Under pressure, water is pushed across the membrane surface. Clean water (permeate) enters the central tube, while concentrated contaminants are rejected and flushed away. This process ensures safe, low-TDS water output for drinking, cooking, industrial processing, or other uses.
Because the HF (high flow) version is engineered to produce more water at a similar rejection rate, it’s especially useful in systems where water demand is higher or where system efficiency matters.
Recommended Applications
The RO membrane TW-4040-HF is ideal for:
- High-demand residential RO systems
- Office or commercial water stations requiring faster production
- Light industrial RO installations
- Pre-treatment before post-filters or DI stages
- Cafés, restaurants, and small bottling operations
Because it fits standard 4040 housings, this membrane is easy to integrate into existing systems, expand production capacity, or replace older elements.
Installation & Maintenance Tips
To keep your RO membrane TW-4040-HF operating well:
- Pre-treat feedwater with sediment and activated carbon filters to reduce chlorine and particulates.
- Flush new membranes at low pressure before full operation to remove preservatives.
- Monitor feed water pressure and TDS levels regularly to catch early signs of fouling.
- Replace pre-filters on schedule to protect the RO membrane and extend its lifespan.
Following these steps helps prevent premature fouling and ensures reliable water quality.
Why It’s a Good Choice
The RO membrane TW-4040-HF strikes a balance between high permeate output and excellent salt removal, making it versatile for many water purification needs. Also, its standard size and broad operating range let you use it in both new builds and system upgrades without costly redesigns.
Conclusion
If you need a high-flow RO membrane that still delivers strong purification performance, the Puritech RO membrane TW-4040-HF is a reliable element for a wide range of RO water systems. It’s suitable for homes, offices, or light commercial applications where higher throughput and consistent salt rejection are important. With proper system setup and maintenance, this membrane contributes to clean, safe, and efficient water purification.
