Heavy-Duty 20″ Slim Opaque Pre-Filter Housing for Superior Filtration
The 20-Inch Slimline Opaque Housing is the ideal solution for high-capacity filtration where space is limited. Specifically engineered for residential and light commercial use in Sri Lanka, it provides a larger filtration surface area than standard 10-inch units, extending the life of your filter cartridges and protecting your appliances from sediment, rust, and dirt.
Key Features & Benefits:
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Algae Protection (Opaque Design): The solid blue body is crafted to block all UV rays. This prevents the growth of algae and bacteria inside the housing, ensuring your water remains safe and your filters stay clean for longer, even in semi-exposed locations.
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Space-Saving High Performance: The “Slim” 2.5-inch diameter design reduces the installation footprint without sacrificing capacity. It is perfect for under-sink setups or tight utility rooms.
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Robust 3/4″ Port Connections: The larger 3/4-inch inlet and outlet ports allow for a higher flow rate compared to standard 1/2″ housings, making it suitable for larger homes or small cafes.
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Safety & Reliability: Constructed from high-strength, food-grade polypropylene, this housing is rated to handle pressure surges up to 90–125 PSI. The leak-proof O-ring seal provides a watertight fit for peace of mind.
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Universal Compatibility: This housing fits all standard 20″ x 2.5″ replacement cartridges, including PP Spun (Sediment), Carbon Block (CTO), and String Wound filters.
Common Applications in Sri Lanka:
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Whole-House Pre-Filtration: Protecting main water lines from sand, silt, and rust.
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RO Plant Pre-Treatment: Serving as a primary stage for 50 LPH or 100 LPH industrial water purifiers.
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Appliance Shield: Extending the life of washing machines, water heaters, and solar heaters by filtering out abrasive particles.
Technical Specifications:
| Feature | Detail |
| Housing Type | 20″ Slimline / Standard |
| Compatible Cartridge Size | 20″ x 2.5″ (Nominal) |
| Material | Reinforced Polypropylene |
| Inlet/Outlet Port | 3/4″ Female Thread (BSP/NPT) |
| Max Operating Pressure | 90 – 125 PSI (6.2 – 8.6 Bar) |
| Temperature Rating | 4°C – 52°C |







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