Whole House Water Filter | 20" Jumbo Double System
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A practical, high-capacity two-stage filtration system for homes on treated town water.
The Pump & Purify 20" Jumbo Double Filtration System combines sediment and carbon block filtration to help improve water clarity, taste and odour throughout your home.
Water passes through the sediment cartridge first, capturing dirt, rust and suspended particles before flowing through the carbon block cartridge to help reduce chlorine taste and odour.
Supplied complete with your selected filter combination and mounting style, housing spanner and mounting hardware, with durable 25mm brass-threaded connections, this system provides straightforward whole-house filtration in a wall-mounted assembly.
Supplied complete with your selected two-filter combination, black powder-coated stainless steel bracket, housing spanner and mounting bolts.
Choose Your Mounting Style
Black Wall Bracket: Black powder-coated stainless steel bracket for wall-mounted installation.
White Freestanding Frame: White powder-coated steel frame supporting both jumbo filter housings. Ideal where wall mounting isn't suitable.
Choose Your Filter Combination
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Polyspun 5 Micron + Carbon Block: General-purpose sediment filtration followed by carbon filtration. A practical everyday choice for treated town water.
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Pleated 20 Micron + Carbon Block: Washable coarse sediment prefiltration followed by carbon filtration. Suitable where larger suspended particles are present.
Sediment and carbon cartridges do not disinfect water. This system is intended for treated town water.
Specifications
- System: 20" Jumbo Double Filtration System
- Housing model: BB20-TWIN
- Filtration stages: 2
- Housing quantity: 2
- Cartridge compatibility: 20" × 4.5" jumbo
- Housing material: Heavy-duty, food-grade polypropylene
- Inlet / outlet: 25mm brass-threaded ports
- Maximum working pressure: 125 psi (approximately 8.6 bar)
- Operating temperature: 2–37°C
- Pressure relief: Integrated bleed valves
- Wall-mounted dimensions: 380mm L × 590mm H × 207mm D
- White framed dimensions: 390mm L × 685mm H × 215mm D
- Port-to-port measurement: 365mm
- Mounting: Black powder-coated stainless steel wall bracket or white powder-coated steel freestanding frame.
- Filter arrangement: Sediment first, carbon block second
- Water supply: Treated town water
- Warranty: 2-year manufacturer warranty on the housings and supplied bracket. Filter cartridges are consumable items and are excluded. Your rights under the New Zealand Consumer Guarantees Act remain unaffected.
What's Included
- 2 × heavy-duty 20" jumbo filter housings
- 1 × selected sediment cartridge
- 1 × carbon block cartridge
- 1 × black powder-coated stainless steel bracket
- 1 × housing spanner
- 4 × mounting bolts
Frequently Asked Questions
Can this system filter the water throughout my house?
Yes. It is designed for whole-house applications, subject to suitable flow rates, pressure and cartridge selection.
Which filter combination should I choose?
The 5-micron polyspun and carbon combination is a practical starting point for most treated town water. Choose the 20-micron pleated option where larger suspended particles are a concern.
Can I replace the cartridges separately?
Yes. Each housing accepts compatible 20" × 4.5" jumbo cartridges.
Can I wash the sediment cartridge?
The pleated cartridge can be cleaned and reused where appropriate. Polyspun cartridges are disposable.
Does this system remove bacteria?
No. Sediment and carbon filtration do not provide reliable disinfection. This system should not be relied upon to make untreated water safe to drink.
How often do the filters need replacing?
Replacement intervals depend on water quality, usage and cartridge type. Follow the manufacturer's recommendations.
Pump & Purify — Kiwi owned since 2010. Great water. Sorted.
Need help choosing? Contact us for straightforward advice.