FRP Multi-Cartridge Filter Housing – Corrosion-Resistant Solution for Seawater Desalination Plant

Product Overview

The FRP Multi-Cartridge Filter Housing by AALFilter is specifically engineered for large-flow, corrosive fluid filtration in seawater desalination and other water treatment applications. Constructed from Fibre Reinforced Plastic (FRP), this housing offers excellent chemical resistance, high strength, and long-term durability—especially in environments where stainless steel housings are not suitable due to salt corrosion.

Designed to accommodate 5 to 22 cartridges of OD 2.5” depth filters, the system is compatible with a variety of filter lengths (20", 30", 40") and cartridge end types including DOE and SOE (222/226). The swing bolt hinged closure ensures easy cartridge change-out and maintenance, while the vertical design and side-in/side-out configuration allow for space-efficient installation and smooth flow dynamics.

This housing is an ideal choice for RO pretreatment in desalination plants, as well as power generation, food & beverage, industrial water treatment, and other demanding filtration applications.

For more on Seawater RO Pretreatment, visit our detailed article.

Key Features

✅ FRP Construction – Excellent corrosion resistance, lightweight, and high strength

✅ High Flow Capacity – Supports 5 to 22 cartridges, with flow rates up to 30 m³/h

✅ Multi-Length Compatibility – Accepts 20", 30", and 40" cartridge filters

✅ Versatile Cartridge Support – Compatible with DOE and SOE end caps (OD 2.5")

✅ Tool-Free Maintenance – Hinged swing bolt design for fast, safe access

✅ Low Operating Cost – Long service life and minimal maintenance requirements

✅ Space-Efficient Design – Vertical body with side inlet/outlet configuration

Specifications

20" x 5 pcs: 3 m³/h

30" x 5 pcs: 4 m³/h

40" x 5 pcs: 5–7 m³/h

40" x 12 pcs: 12–18 m³/h

40" x 22 pcs: 22–30 m³/h |
| Liquid Direction | Side-in, Side-out |

Applications

✅ Seawater Desalination

RO membrane pretreatment

Brine filtration

Offshore and coastal water processing

✅ Industrial Water Treatment

Cooling water filtration

Process water purification

Boiler feed water pre-filtration

✅ Power & Energy

Condensate polishing

Turbine protection systems

✅ Food & Beverage

Process water and CIP systems

Beverage-grade filtration in high-humidity or chemical environments

✅ Chemical & Microelectronics

Ultra-pure water systems

Aggressive chemical filtration environments

Why Choose AALFilter's FRP Multi-Cartridge Filter Housing?

Designed for long-term durability in corrosive environments like seawater and brine

Simplifies maintenance and filter change-out with user-friendly swing bolt closure

Enables custom flow capacity designs based on project requirements

Backed by AALFilter’s technical support team and application-specific expertise

Contact us -AALFilter for expert consultation and customized solutions.