Twin 20″ Big Blue Whole House Rainwater Filtration System with Stainless Steel Stand & Weatherproof Cover
Protect your household water supply with the Twin 20″ Big Blue Whole House Rainwater Filtration System, featuring two-stage sediment and carbon filtration, a stainless steel stand and a full stainless steel weatherproof protective cover.
Designed for Australian homes, farms, rural properties and businesses, this system is suitable for rainwater tank filtration and mains water filtration, helping reduce sediment, chlorine, unpleasant tastes and odours before water reaches your taps, showers and appliances.
The larger 20″ × 4.5″ Big Blue cartridges provide generous filtration surface area for whole-house applications, while the stainless steel stand and protective cover offer a practical solution for outdoor or undercover installations.
Stage 1 – 5-Micron Washable Sediment Filtration
The first stage features a 20″ × 4.5″ 5-micron pleated washable sediment filter.
This cartridge helps capture:
- Dirt, sand and silt
- Rust and suspended particles
- Sediment commonly found in rainwater tanks
- Particulate matter entering household plumbing
Removing sediment helps improve water clarity and reduces the amount of suspended material reaching the second-stage carbon cartridge.
The pleated filter can be washed and reused according to the manufacturer’s maintenance instructions.
Stage 2 – 5-Micron Silver-Impregnated Carbon Filtration
The second stage features a 20″ × 4.5″ 5-micron silver-impregnated carbon block filter.
The activated carbon helps reduce chlorine, unpleasant tastes, odours and certain organic contaminants, depending on the cartridge’s performance and incoming water quality.
The silver impregnation provides bacteriostatic protection, helping inhibit bacterial growth within the filter media.
This combination makes the system a practical choice for rainwater and mains water supplies requiring both sediment and carbon filtration.
Full Stainless Steel Weatherproof Cover & Stand
Unlike standard wall-mounted Big Blue filtration systems, this model includes a full stainless steel protective weatherproof cover and stainless steel stand.
The protective cover helps shield the filter housings from weather exposure, making the system particularly useful for outdoor and undercover installations.
Key Advantages
- Full Stainless Steel Protective Cover: Helps protect filter housings from rain, sunlight and outdoor exposure.
- Stainless Steel Stand: Provides a dedicated support structure for the filtration equipment.
- Heavy-Duty Stainless Steel Mounting Bracket: Supports the twin Big Blue filter housings.
- Outdoor Installation Option: Suitable for positioning near rainwater tanks, water pumps or household supply connections, subject to installation requirements.
- Organised Filtration Setup: Keeps filtration equipment together in a practical, professional-looking arrangement.
Key Features & Benefits
- Twin 20″ × 4.5″ Big Blue Filter Housings: Designed for whole-house water filtration.
- Two-Stage Filtration: Combines sediment and activated carbon filtration.
- 5-Micron Washable Sediment Filter: Helps capture dirt, rust, sand, silt and suspended particles.
- 5-Micron Silver Carbon Block Filter: Helps reduce chlorine, unpleasant tastes and odours.
- Bacteriostatic Filter Media: Silver impregnation helps inhibit bacterial growth within the carbon filter.
- Rainwater Tank Filtration: Suitable for filtering stored rainwater before household distribution.
- Mains Water Filtration: Helps improve the taste and clarity of mains water.
- Full Stainless Steel Weatherproof Cover: Helps protect filtration components in exposed installations.
- Stainless Steel Stand: Provides convenient support for the system.
- Two Pressure Gauges: Assist with monitoring system pressure.
- Filter Housing Spanner: Included for convenient maintenance and cartridge replacement.
Ideal for Rainwater Tank Filtration
Rainwater collected from roofs and stored in tanks can contain sediment, dust, dirt and organic matter.
The Twin 20″ Big Blue rainwater filtration system combines a washable sediment cartridge with a silver-impregnated carbon block to help improve water clarity, taste and odour.
Its full stainless steel protective cover makes it especially practical for properties requiring a filtration system near their rainwater tank or pump.
Recommended Applications
- Whole house rainwater filtration
- Rainwater tank filtration
- Mains water filtration
- Rural homes and farms
- Off-grid properties
- Outdoor and undercover filtration installations
- Household sediment and carbon filtration
- Pre-filtration before UV disinfection
Important: This system does not include UV disinfection. Silver-impregnated carbon is bacteriostatic within the filter media and does not reliably disinfect untreated rainwater. Additional treatment may be required for drinking water.
Why Buy From Aus Water Tanks?
Over 30 Years of Water Industry Experience
With more than 30 years of experience in the Australian rainwater industry, Aus Water Tanks supplies water filtration solutions for homes, farms and businesses throughout Australia.
Our range includes whole house water filtration systems, rainwater filtration systems, reverse osmosis drinking water systems and replacement cartridges.
Quality Filtration at Competitive Prices
As a family-run Australian business, we focus on quality products, competitive pricing and practical advice.
Our experienced team can assist with selecting suitable filtration equipment for your water supply and household requirements.
Complete Rainwater Solutions
Aus Water Tanks also supplies rainwater tanks, water pumps, filtration accessories and replacement filter cartridges.
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.
Contact our experienced team for product advice, availability and freight options.
Experience You Can Rely On
With over 30 years of industry experience, Aus Water Tanks combines quality products, competitive pricing and practical filtration knowledge.
Shop Online and Save – Australia-Wide Delivery
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