Description
Single 2.5" OD Slim Line Water Filter Housings
Protect your water system and improve filtration performance with Single 2.5" OD Slim Line Water Filter Housings from Franklin Water Treatment. Designed to accommodate standard 2.5" outside diameter slim line filter cartridges, these durable housings are available in 10-inch lengths, making them ideal for residential, commercial, and light industrial point-of-use water filtration applications.
Constructed with a rugged reinforced polypropylene cap and your choice of a blue polypropylene housing or clear styrene acrylonitrile (SAN) housing, these filter housings deliver dependable long-term performance. The clear housing option allows for quick visual inspection of cartridge condition, while the blue housing is NSF/ANSI 42 certified for drinking water applications.
With 3/4" NPT ports, a maximum operating pressure of 100 PSI (blue models) or 60 PSI (clear models), and a maximum operating temperature of 125°F (51.7°C), these slim line housings are suitable for a wide variety of sediment, carbon block, and specialty filtration cartridges.
Key Features
Fits Standard 2.5" OD Slim Line Filter Cartridges
Designed to accept industry-standard 2.5" outside diameter cartridges in 10-inch lengths.
Blue or Clear Housing Options
-
Blue polypropylene housing for maximum durability and NSF/ANSI 42 certification.
-
Clear SAN housing allows quick visual inspection of cartridge condition without opening the housing.
Reinforced Polypropylene Cap
Heavy-duty reinforced polypropylene cap provides excellent strength and durability for long service life.
Stainless Steel Pressure Relief Button
Integrated pressure relief button assembly features stainless steel, polypropylene, and NBR components to simplify cartridge changes.
Standard 3/4" NPT Connections
Equipped with 3/4" NPT threaded ports for easy installation into residential and commercial plumbing systems.
Specifications
| Specification | Details |
|---|---|
| Housing Type | Single Slim Line Filter Housing |
| Cartridge Size | Standard 2.5" OD Slim Line |
| Available Lengths | 10" |
| Port Size | 3/4" NPT |
| Housing Material | Polypropylene (Blue) or Styrene Acrylonitrile (Clear) |
| Cap Material | Reinforced Polypropylene |
| O-Ring Material | NBR |
| Pressure Relief Button | Stainless Steel / Polypropylene / NBR |
| Maximum Temperature | 125°F (51.7°C) |
| Maximum Pressure (Blue) | 100 PSI (6.90 bar) |
| Maximum Pressure (Clear) | 60 PSI (4.14 bar) |
| Certification | Blue Housing: NSF/ANSI 42 |
| Initial Pressure Drop | 1 PSI @ 8 GPM (30 L/min) |
Available Models
| Model | Housing Type | Overall Dimensions |
|---|---|---|
| FWHP1034BLK | Blue | 5.14" × 12.26" |
| FWHP1034CLK | Clear | 5.14" × 12.26" |
Applications
These slim line filter housings are ideal for:
-
Residential drinking water filtration
-
Whole-home pre-filtration
-
Cottage and cabin water systems
-
Municipal water treatment
-
Well water filtration
-
Sediment removal
-
Carbon filtration
-
Taste and odour reduction
-
Point-of-use filtration systems
Why Choose Franklin Slim Line Filter Housings?
Franklin Water Treatment slim line housings provide a reliable platform for a wide range of standard filter cartridges. Their rugged construction, standard plumbing connections, and compatibility with common sediment and carbon filters make them an excellent choice for new installations or replacement filter housing projects. Whether you choose the NSF-certified Blue housing or the convenient clear housing for visual cartridge inspection, Franklin housings are built to deliver dependable filtration performance.
Frequently Asked Questions
What size filter cartridges do these housings accept?
These housings are designed for standard 2.5" outside diameter slim line filter cartridges available in 10-inch lengths.
What is the difference between the blue and clear housings?
The blue housing is constructed from polypropylene and is NSF/ANSI 42 certified, while the clear housing is manufactured from styrene acrylonitrile (SAN) and allows you to visually inspect the filter cartridge without opening the housing.
What connections do these housings use?
All models feature 3/4" NPT threaded ports for straightforward installation into standard plumbing systems.
What is the maximum operating pressure?
Blue housings are rated to 100 PSI (6.90 bar), while clear housings are rated to 60 PSI (4.14 bar).
What types of filter cartridges can be used?
These housings are compatible with most standard 2.5" OD slim line sediment filters, carbon block filters, granular activated carbon cartridges, pleated filters, and many specialty filtration cartridges designed for standard slim line housings.

















