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20″ Big Blue and Big Black Heavy Duty Filter Housings offer the versatility to meet all of your large-capacity filtration needs, including high-flow and heavy-sediment applications. The extra-large housing allows for greater cartridge capacity, reducing the number of vessels required for high flow-rate applications.
Out of stock
Delivery and return
Delivery and return
Next day delivery in store
Buy before 6pm to receive your order next day.FREE
Next day delivery
Orders before 6pm from Monday to Saturday (or before 1pm on Sunday) will be delivered Next working day (except Northern Ireland and Highlands). Orders placed after 6pm (after 1pm on Sunday) or for Northern Ireland and Highlands will be delivered in 2 working days.29 USD
Drop Point
In 2-3 working days. Pick up your parcel in one of the many diferent collection points available and during a wide range of hours.39 USD
Same day delivery in London:
Place your order before 13:00 to get it today!. If you order later on, you’ll receive it the next day and if you order on Sunday, you’ll receive it the next working day.59 USD
Shipping Information
Shipping Information
SHIPPING
Complimentary ground shipping within 1 to 7 business days In-store collection available within 1 to 7 business days Next-day and Express delivery options also available Purchases are delivered in an orange box tied with a Bolduc ribbon, with the exception of certain items See the delivery FAQs for details on shipping methods, costs and delivery timesComposition and care
Composition and care
Characteristics of wood :
- Hard, compact , fiberous and porous
- Good wood gives a rich, warm and beautiful surface.
Wood is used for the construction of:
- Floor, Furniture, Walls
- Incidental furnishing (lampshades, picture frames)
- Kitchen & restaurant ware
Description
20″ Big Blue Water Filter Housing – Taiwan (Single O-Ring)
The 20″ Big Blue Water Filter Housing – Taiwan is a durable, high-capacity housing designed for residential, commercial, and pre-RO filtration systems. Additionally, it features a single O-ring for reliable sealing, ensuring leak-free performance. It accommodates standard 20″ × 4.5″ filter cartridges, making it ideal for sediment removal, carbon filtration, or whole-house water treatment. Moreover, its Taiwan-manufactured construction guarantees long-term stability even in demanding water conditions.
Key Features
- Single O-Ring Seal: Ensures a tight, leak-free connection while allowing easy maintenance.
- Fits 20″ × 4.5″ Cartridges: Accepts sediment, carbon block, CTO, GAC, and specialty filters.
- High-Capacity Housing: Perfect for whole-house and high-flow filtration setups.
- Taiwan Quality Build: Strong polypropylene body designed for durability and pressure stability.
- Easy Servicing: Compatible with standard Big Blue wrenches, brackets, and cartridges. In addition, replacement cartridges are widely available.
Technical Specifications
- Housing Type: 20″ Big Blue (single O-ring)
- Cartridge Size: 20″ × 4.5″
- Material: Heavy-duty polypropylene
- Port Size: Typically 1″ (confirm your model)
- Operating Pressure: Up to approx. 6 bar
- Temperature Range: ~4°C – 38°C
Benefits for Your Filtration System
This Taiwan-made Big Blue housing provides large filtration capacity and improved water flow, making it suitable for borehole systems, municipal water polishing, or pre-filtration for reverse osmosis. Furthermore, the single O-ring design ensures easy sealing without over-tightening. Consequently, it reduces leaks and maintenance hassles, while the large internal diameter allows high flow with minimal pressure drop.
Installation & Maintenance Tips
- Mount vertically with enough clearance to remove the sump during cartridge replacement.
- Always depressurise the system before opening the housing.
- Additionally, lubricate the O-ring with food-grade silicone before re-installing.
- Replace filters based on water quality (typically every 6–12 months).
- Finally, check for leaks after re-pressurising the system.
