✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.
Description
Product Description
The Franklin Water Treatment FWHL Series Big Blue Filter Housings are engineered for high-flow residential, commercial, agricultural, and industrial water filtration applications. Designed to accommodate industry-standard 4.5" OD Big Blue filter cartridges, these heavy-duty filter housings provide dependable performance for whole house filtration, well water systems, irrigation, restaurants, reverse osmosis pre-filtration, food service, and equipment protection applications.
Available in both opaque black and transparent clear sump configurations, the Franklin FWHL Series allows users to choose between maximum durability or convenient visual filter inspection. The clear housing models make it easy to monitor cartridge condition without disassembling the system, while the black housings offer superior resistance to UV exposure and long-term wear.
Each housing features a durable polypropylene cap, integrated pressure relief button for simplified maintenance, and a heavy-duty sealing system utilizing NBR o-rings for reliable leak protection. Designed for easy installation and long service life, the FWHL Series delivers excellent flow performance with minimal pressure drop.
Compatible with standard 10" and 20" Big Blue style filter cartridges, these housings are ideal for sediment, carbon block, pleated, specialty, and chemical reduction filtration applications.
Available Models
- FWHL101BLK – 10" Black Housing with 1" Connections
- FWHL201BLK – 20" Black Housing with 1" Connections
- FWHL101CLK – 10" Clear Housing with 1" Connections
- FWHL201CLK – 20" Clear Housing with 1" Connections
Key Features
- Compatible with industry-standard 4.5" OD Big Blue filter cartridges
- Available in 10" and 20" housing lengths
- Choice of opaque black or transparent clear housing bowls
- High-flow design with low pressure drop
- Integrated pressure relief button for easy maintenance
- Heavy-duty polypropylene construction
- Suitable for residential, commercial, agricultural, and industrial applications
- Compatible with sediment, carbon, pleated, and specialty cartridges
- Durable NBR o-ring sealing system
- Designed for whole house and well water filtration systems
Common Applications
- Whole house water filtration
- Well water systems
- Agricultural water filtration
- Greenhouses and irrigation systems
- Restaurants and food preparation
- Reverse osmosis pre-filtration
- Commercial and industrial water treatment
- Equipment and appliance protection
Specifications
| Model | Housing Length | Connection Size | Housing Color | Dimensions |
|---|---|---|---|---|
| FWHL101BLK | 10" | 1" | Black | 7.37" × 13.5" |
| FWHL201BLK | 20" | 1" | Black | 7.37" × 23.16" |
| FWHL101CLK | 10" | 1" | Clear | 7.37" × 13.5" |
| FWHL201CLK | 20" | 1" | Clear | 7.37" × 23.16" |
Performance Specifications
- Maximum Pressure: 90 PSI (6.2 bar)
- Maximum Temperature: 100°F (37.8°C)
- Initial Pressure Drop: 1 PSI @ 15 GPM
- O-Ring Material: NBR
- Cap Material: Polypropylene (HFPP) or ABS
- Housing Material:
- Black Models: Polypropylene
- Clear Models: Polycarbonate
Frequently Asked Questions
What filter cartridges are compatible with the FWHL Series housings?
These housings are compatible with all industry-standard 4.5" OD Big Blue filter cartridges in either 10" or 20" lengths depending on the selected model.
What is the difference between the black and clear housing models?
- Black housings provide superior durability and UV resistance.
- Clear housings allow visual inspection of the filter cartridge without opening the housing.
What applications are these filter housings suitable for?
The FWHL Series is commonly used for:
- Whole house filtration
- Well water systems
- Agricultural filtration
- Irrigation and greenhouse systems
- Reverse osmosis pre-filtration
- Restaurants and food service
- Commercial and industrial water treatment
What is the maximum operating pressure?
All listed FWHL Series models are rated for a maximum operating pressure of 90 PSI.
What temperature range can these housings handle?
The maximum operating temperature is 100°F (37.8°C).
What connection size do these housings use?
The listed FWHL Series models utilize 1" inlet and outlet connections.
Do these housings include a pressure relief button?
Yes. Each housing includes an integrated pressure relief button for easier filter changes and safer maintenance.
Can these housings be used for whole house water filtration?
Yes. These Big Blue housings are specifically designed for high-flow whole house filtration applications.
What types of filters can be installed in these housings?
These housings can accommodate:
- Sediment filters
- Carbon block filters
- Pleated filters
- Specialty chemical reduction cartridges
- Iron reduction filters
- Taste and odor reduction filters
Are filter cartridges included with these housings?
No. Filter cartridges are sold separately unless otherwise specified.
What material are the housings made from?
- Black models use durable polypropylene housings.
- Clear models use heavy-duty polycarbonate bowls.
- Caps are constructed from polypropylene (HFPP) or ABS.
What is the benefit of a Big Blue style housing?
Big Blue housings provide higher flow rates, larger dirt-holding capacity, and longer filter life compared to standard slim-line filter housings.
Can these housings be installed outdoors?
Black housings are better suited for limited outdoor exposure due to improved UV resistance. Clear housings should be protected from prolonged direct sunlight exposure.
Are these housings suitable for well water systems?
Yes. These housings are commonly installed on well water systems to help reduce sediment, dirt, rust, and other contaminants depending on the selected filter cartridge.
Manuals & Documentation
✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.
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