Twin 10″ Big Blue Whole House Rainwater & Mains Water Filtration System
The Twin 10″ Big Blue Whole House Rainwater Filtration System is a high-flow, two-stage water filtration solution designed for Australian homes, farms and rural properties using rainwater tanks or mains water supplies.
Combining a 5-micron washable sediment filter with a 5-micron silver-impregnated antibacterial carbon block filter, this system helps reduce sediment, dirt, rust, unpleasant tastes and odours before water reaches your household taps, showers and appliances.
With flow rates of up to 75 litres per minute, this twin-filter system is designed to provide whole-house water filtration while supporting everyday household water demands.
Key Features & Benefits
- Two-Stage Water Filtration: Combines sediment filtration and antibacterial carbon block filtration.
- 5-Micron Washable Sediment Filter: Helps capture dirt, rust, sand, silt and suspended particles from rainwater and mains water supplies.
- 5-Micron Silver-Impregnated Carbon Block Filter: Helps reduce certain taste and odour contaminants while inhibiting bacterial growth within the filter media.
- High-Flow Filtration: System flow capacity stated as up to 75 L/min, subject to water pressure and cartridge performance.
- Whole House Water Filtration: Filters water before distribution to household taps, showers and appliances.
- Twin 10″ Big Blue Filter Housings: Heavy-duty 10″ × 4.5″ filtration housings.
- Stainless Steel Mounting Bracket: Provides a secure mounting arrangement.
- Dual Pressure Gauges: Allow convenient monitoring of water pressure.
- Washable Sediment Cartridge: Designed for cleaning and reuse according to the manufacturer’s instructions.
- Replacement Cartridges Available: Compatible replacement filters can be purchased separately.
Ideal for Rainwater Tank Filtration
Rainwater collected from roofs and stored in tanks can contain dirt, sediment, organic debris and suspended particles.
The Twin 10″ Big Blue rainwater filtration system provides two stages of filtration to help improve the clarity and quality of stored rainwater before it enters your household plumbing.
The first-stage pleated sediment filter captures suspended particles, while the second-stage silver-impregnated carbon block filter provides additional filtration to help improve water taste and odour.
This system is also suitable for mains water filtration, where carbon filtration can help reduce chlorine-related taste and odour issues.
Recommended Applications
- Whole house rainwater filtration
- Rainwater tank filtration
- Mains water filtration
- Rural and farm water supplies
- Household sediment filtration
- Tank water filtration
- Off-grid properties
- Whole house carbon filtration
Rainwater & Mains Water Filtration
Whether your home relies on stored rainwater or a mains water supply, selecting the right filtration system helps improve water quality and protect household plumbing.
For rainwater supplies, the twin filtration stages help reduce sediment and improve taste and odour.
For mains water supplies, the carbon block cartridge can help reduce chlorine-related taste and odour issues alongside sediment filtration.
Important: This system provides sediment and carbon filtration but does not include UV disinfection. Rainwater intended for drinking may require additional treatment depending on water quality.
Why Buy From Aus Water Tanks?
Over 30 Years of Rainwater Industry Experience
With more than 30 years of experience in the Australian rainwater industry, Aus Water Tanks understands the importance of reliable water storage, pumping and filtration.
We supply rainwater tanks, whole house water filtration systems, water pumps and complete rainwater solutions for Australian homes, farms and businesses.
Quality Rainwater Filtration at Competitive Prices
As a family-run Australian business, we focus on supplying quality rainwater filtration systems, water treatment equipment and replacement cartridges at competitive prices.
Our experienced team can help customers select suitable filtration equipment for their rainwater or mains water supply.
Complete Rainwater Solutions
A reliable rainwater system involves more than just filtration.
Aus Water Tanks also supplies rainwater tanks, water pumps, rainwater-to-mains systems, replacement cartridges and accessories.
We understand how water storage, pumping and filtration equipment work together.
Australia-Wide Delivery
Aus Water Tanks supplies whole house rainwater filtration systems, mains water filters and replacement cartridges Australia-wide.
Whether you’re located in New South Wales, Queensland, Victoria, South Australia, Western Australia, Tasmania, the ACT or the Northern Territory, contact us for available delivery and freight options.
Experience You Can Rely On
With over 30 years of water industry experience, Aus Water Tanks combines quality filtration products, competitive pricing and practical product knowledge.
Shop Online and Save – Australia-Wide Delivery
Visit www.auswatertanks.com.au for rainwater filtration systems, replacement cartridges and product advice.

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