A 20″ Jumbo water filter housing is a high-capacity filtration unit designed for whole-house, commercial, or industrial water treatment. Its larger diameter allows it to handle higher flow rates and longer filtration intervals compared to standard 2.5” housings.
Key Specifications:
|
Feature |
Description |
|
Filter Size Compatibility |
20″ x 4.5″ Jumbo filter cartridges (often called “Big Blue”) |
|
Housing Material |
High-strength polypropylene (PP), sometimes with optional clear SAN or reinforced variants |
|
Cap Material |
Reinforced polypropylene or brass insert threads for durability |
|
Thread Options |
1″, 1.25″, or 1.5″ BSP (threaded inlet/outlet) |
|
Pressure Rating |
Typically, 115–145 psi (8–10 bar) |
|
Temperature Rating |
Max. 40–45°C (for standard PP); up to 60°C for reinforced models |
|
Sealing |
EPDM, Buna-N, or Viton O-rings (use food-grade silicone lubricant) |
|
Mounting |
Usually wall-mounted with a steel bracket and plastic/metal spanner wrench |
|
Color Options |
Blue (opaque), white, or clear (limited use; UV protection required) |
Compatible Cartridge Types (20” x 4.5”):
- Sediment Filters (1 to 100 micron)
- Carbon Block / GAC Filters (for chlorine, taste & odor removal)
- Iron/Manganese Reduction Filters
- Softening Resin Cartridges
- KDF + Carbon Combo Filters
Applications:
- Whole-house filtration
- Pre-filtration for RO systems
- Industrial wash water systems
- Rainwater harvesting and filtration
- Agriculture and irrigation systems
- Commercial kitchens, laundry, and HVAC systems
Advantages:
- ✅ High flow capacity: Up to 15–40 GPM, depending on cartridge used
- ✅ Longer cartridge life due to larger surface area
- ✅ Quick maintenance: Simple twist-off cap for easy filter change
- ✅ Wide cartridge compatibility