4040 x2 FRP Membrane Housing
R1,820.08
The 4040 x2 FRP Membrane Housing is a durable housing for RO membranes and stable system performance. Check stock availability at Monster Mechanical.
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4040 RO Housing – Durable FRP Membrane Vessel
The 4040 RO housing is a strong FRP vessel designed to hold two standard 4040 reverse osmosis membranes. It works well in commercial, industrial, and high-capacity residential RO systems. Moreover, it handles pressures up to 300 PSI, protecting the membranes from corrosion and wear.
How the RO Vessel Works
Water enters the RO housing under pressure and flows through the internal membranes. First, the pressure pushes water against the membranes. Then, the membranes filter out impurities, producing clean water. Because the housing uses water pressure, it does not require electricity. Therefore, you can install it in homes, offices, factories, or laboratories without extra equipment.
Technical Specifications
| Specification | Detail |
|---|---|
| Membrane Size | Standard 4040 RO elements |
| Housing Capacity | 2 membranes |
| Maximum Pressure | 300 PSI (≈21 bar) |
| Material | FRP (fibreglass reinforced plastic) |
| Connection Type | Standard threaded ends |
| Operating Temperature | -7 °C to 49 °C |
| Color | White / Off‑White |
These specs make this vessel versatile for any high-pressure RO system.
Key Benefits
Using this RO vessel increases system capacity and ensures reliable filtration. In addition, its strong FRP body resists rust and physical damage. Furthermore, the lightweight design makes installation and maintenance easier. You can also replace individual membranes without stopping the system, which saves time and keeps your water clean consistently.
Installation and Maintenance
Mount the vessel on a stable frame and attach the inlet and outlet connections securely. Check O-rings during membrane replacements. Also, follow the manufacturer’s schedule for changing membranes. By following these steps, your RO system will deliver clean water efficiently and reliably.


Shipping and Delivery
Monster Mechanical delivers nationwide across South Africa. Orders are processed once payment is confirmed, and dispatch timing depends on product type, stock availability and whether your system is built to order.
Delivery Information
- In-stock components and smaller items are usually dispatched within 1–3 business days.
- Larger RO systems, custom assemblies and project orders may require additional build or handling time before dispatch.
- Delivery times vary by destination and courier service, with major centres typically faster than regional or outlying areas.
For bulky equipment, installation-related deliveries or urgent requirements, please contact our team before ordering so we can confirm lead times, freight options and the best delivery solution for your location.

