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Big Blue 20" Double O-ring Filter Housing
Rating
Big Blue 20" housing for filter cartridges measuring 20" x 4.5". Two-part construction (blue cover + head with 1" thread) and double o-ring ensure tightness and stable operation. The blue cover limits light access, and vent facilitates startup after cartridge replacement. For installation on cold water; single or series installation possible.
Description
Big Blue 20" in-line filter housing with double O-ring is a durable water filter housing designed for 20" x 4.5" filter cartridges. It works well as part of a water filtration and water treatment system in cold water installations in homes, apartments, and industrial applications. The two-piece design, 1" thread, air release valve, and double sealing ensure convenient use, high leak tightness, and stable operation with a wide range of mechanical, specialty, and carbon cartridges.
Durable Big Blue 20" housing for efficient water filtration
The Big Blue® in-line housing is adapted for use with any 20" high and 4.5" diameter water treatment cartridges. It is a universal solution for users who want to build an effective water filter for a home installation or create a more advanced water filtration system.
Made of high-quality reinforced materials, it supports effective and long-lasting operation of the entire filtration system. As a result, the housing performs well both as a single filtration point and as part of larger installations working together with water treatment devices.
Design and key features
- Two-piece design – the housing consists of a blue sump and a head with a 1" thread.
- Blue sump limits the effect of light on the cartridge, protecting it against photosynthesis when the filter is installed in a sunlit location.
- Double sealing O-ring increases connection tightness and supports stable housing operation.
- Air release valve allows air collected in the filter to be released after cartridge replacement.
- Flexible installation – the housing can be installed individually or connected in series with other filtration stages.
- Designed for cold water – the filter is installed on the pipe supplying cold water to the house or apartment.
- High capacity means the housing is also suitable for industrial use.
- Wide compatibility – compatible with 20" Big Blue® mechanical, specialty, and carbon cartridges available on the market.
Where is this housing suitable?
The Big Blue 20" model can be used wherever a high-capacity large-format filter cartridge and a durable housing for operation in a cold water installation are needed. It is a practical choice for single-family homes, apartments, utility points, and technical installations.
When installed before devices such as a water softener, iron removal system, pressure tank system, or boiler, the housing helps protect them against the buildup of various types of contaminants, depending on the cartridge used. This solution can also extend the service life of the protected devices and support more stable operation of the entire installation.
The product is intended for installation on a cold water system. Filtration performance depends on the cartridge used, so the cartridge type should be selected according to water quality and the expected filtration result.
Cartridge compatibility and expansion options
The housing is compatible with a wide range of 20" Big Blue® cartridges with a diameter of 4.5". This allows it to perform different functions depending on the filtration media used and the installation point in the system.
- mechanical cartridges for retaining solid contaminants,
- specialty cartridges for specific water treatment applications,
- carbon cartridges for improving water quality in selected filtration areas.
The option of single or series installation makes it easier to build multi-stage systems, also as a preliminary stage before more advanced solutions such as a reverse osmosis filter, RO filter, reverse osmosis system, or reverse osmosis setup in configurations that require prior protection of devices and installation components.
Operation and ease of use
In everyday use, the air release valve is highly important because it makes it easier to restart the filter after cartridge replacement. Releasing accumulated air supports proper system operation and more convenient servicing.
The double O-ring under the head supports leak tightness during pressure operation, while the two-piece design makes it easier to access the inside of the housing during filter cartridge replacement.
Additional important information
- Number of O-rings under the head: 2
Technical specification
| Parameter | Value |
|---|---|
| Housing type | Two-piece |
| Thread diameter | 1 inch |
| Operating temperature | 2 - 45°C |
| Max. operating pressure | 6 bar |
| Colored housing material | PP (polypropylene) |
| Head material | PP (polypropylene) |
| O-ring (seal) material | NBR |
| Compatible cartridge dimensions | 20 x 4 1/2" (52 cm x 11.5 cm) |
| Air release valve | Yes |
Product Details
994 Items
Data sheet
- Maximum working pressure
- 6 bar
- Maximum working temperature
- 45 °C
- Minimum working temperature
- 2 °C
- Accessory type
- Filter housing
- Cartridge length
- 20″
- Compatibility
- Big Blue 20"
- Connection size
- 1″
- Housing standard
- Big Blue 20″
- Installation form
- Inline / pipe-mounted
- Product type
- Filter housing
- Material
- Polypropylene
Choose a set or individual cartridges. Replacement intervals depend on the cartridge and operating conditions.
Individual cartridges 9
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Questions
Which cartridges does this Big Blue 20" housing fit?
The housing is designed for cartridges with a height of 20" and a diameter of 4.5", which means the Big Blue® 20" standard. It works with mechanical, specialty, and carbon cartridges available on the market.
Is this housing suitable for hot water?
No. The product is intended for cold water installations and should operate within a temperature range of 2 to 45°C.
What is the function of the double O-ring?
The double sealing O-ring improves the tightness of the connection under the head, which helps maintain stable housing operation and reduces the risk of leaks during use.
What is the air release valve used for?
The air release valve makes it possible to remove air accumulated in the filter after cartridge replacement. This makes system startup easier and supports proper operation.
Can the housing be installed individually and together with other filters?
Yes. The housing can operate as a single water filter or as part of a system connected in series with other filtration stages.
Where is the best place to install this housing?
It is most often installed on the pipe supplying cold water to a house or apartment. It can also operate before devices such as a water softener, iron removal system, pressure tank system, or boiler.
Why is the sump blue?
The blue sump limits light access to the cartridge, which helps protect it against photosynthesis, especially when the filter is installed in a sunlit location.
Is the Big Blue 20" in-line filter housing with double O-ring suitable only for home use?
No. Due to its high capacity, the housing is also used in industry, wherever efficient cold water filtration with Big Blue® 20" cartridges is needed.
super
polecam świetnie wykonany
polecam
Super wykonany i w dodatku w dobrej cenie 10/10
Big Blue 20" housing for filter cartridges measuring 20" x 4.5". Two-part construction (blue cover + head with 1" thread) and double o-ring ensure tightness and stable operation. The blue cover limits light access, and vent facilitates startup after cartridge replacement. For installation on cold water; single or series installation possible.