20" Twin Whole House Rainwater Filtration & UV System (Medium/Large Home) (Unassembled)

20" Twin Big Blue Filter System + UV Disinfection Bundle – Specially Designed for Rainwater

This comprehensive rainwater treatment system combines robust dual-stage filtration with high-capacity ultraviolet disinfection, ensuring safe and clean water for high-flow homes, farms, and off-grid properties. The bundle includes a 20" Twin Big Blue Filter System and a powerful 110W UV disinfection unit for complete protection from sediment, fines, and harmful microorganisms.

What’s Included in the Bundle

1x 20" Twin Big Blue Jumbo Heavy Duty Filter Housing
1x 20" Polypleated 20 Micron Filter Cartridge
1x 20" Polyspun 1 Micron Filter Cartridge
1x 110W UV Disinfection System (includes 2 UV lamps, quartz sleeves, seals, timer ballast, and mounting clamps)
Mounting bracket, spanner wrench, and four bolts

Product Description

The first stage of filtration removes large debris such as sediment, silt, and colour using a washable 20 micron pleated filter. The second stage uses a 1 micron polyspun cartridge to capture fine particles and assist in the reduction of Giardia and other cysts. Once filtered, water passes through the 110W UV disinfection chamber, where 99.9% of harmful microorganisms—including E. coli and Salmonella—are inactivated, making this system ideal for whole-house rainwater setups.

The UV system features a stainless steel chamber, dual-lamp design, and a countdown timer ballast with alarm indicators, all optimised for flows up to 90 litres per minute at a 30mJ/cm² UV dose.

Key Features

Three-part system for full-spectrum rainwater treatment
20 micron pleated filter removes sediment and organics
1 micron polyspun filter captures fines and protozoa
110W dual-lamp UV system eliminates bacteria and viruses
UV system includes timer ballast, lamps, sleeves, seals, and mounting clamps
No chemicals added – preserves water’s natural properties
Suitable for high-flow homes, rural water setups, and off-grid living
Temperature range: 2°C to 40°C
Maximum working pressure: 125 psi
UV flow rating: 90 LPM (30mJ/cm²) or 168 LPM (16mJ/cm²)

Why You Should Buy

Provides safe, clear, great-tasting rainwater for full-home use
Powerful UV system eliminates health risks from roof runoff
Washable filter lowers maintenance costs
Ideal for farms, households, and water-intensive properties
All key components included for filtration and disinfection setup

FAQs

Q: What types of contaminants does this system treat?
A: Sediment, colour, fine particles, protozoa (e.g. Giardia), and 99.9% of bacteria and viruses like E. coli.

Q: How often do I need to replace components?
A: Replace the UV lamps every 12 months. The pleated filter is washable; the polyspun filter may last 6–12 months depending on water quality.

Q: Is it safe for drinking water?
A: Yes – this system is specifically designed to make rainwater safe for household consumption.

Q: Does it require power?
A: Yes – the UV unit must be connected to power for the lamps and diagnostics to function.

Q: What’s in the bundle?
A: 20" twin housing, 20µm pleated and 1µm polyspun filters, UV system with all lamps and components, plus a spanner and mounting hardware.