Rainwater Filtration Systems

Water Softening & Specialty Options

Crystal Pure rainwater filtration systems deliver clean, safe, great-tasting tank water for drinking, cooking, and household use.

Designed for tank water users, our rainwater filtration systems remove sediment, bacteria, and organic matter while ensuring safe drinking quality.

Multi-stage filtration + UV disinfection
Suitable for cooking, bathing, and household cleaning

Benefits of Rainwater Filtration Systems

Safe Drinking Water from Rainwater

Our systems treat tank water to make it safe for all uses.

Multi-Stage Rainwater Filtration

Includes sediment filters, carbon filtration, and UV sterilisation for bacteria control

UV Sterilisation for Tank Water

Protects against harmful microorganisms, ensuring peace of mind.

Weather Resistant Twin Filter + UV Whole House Water Sanitation System (HPF-UV)

Treats Raw, Rain, Tank & Bore* Water for Households of 3+ People
Durable Tamper-Resistant & Weather Resistant 304 Brushed Stainless-Steel Enclosure to Protect Your System
Corrosion Resistant Electropolished 304 Stainless Steel Ultraviolet Sanitation Chamber
High-strength acrylic (Plexiglass) panel providing clear visibility and protection for electrical components and pressure gauges.
Customisable Twin Pre-Filter Options: Choose from Our Range of Sediment and Carbon Filters Compliant to National Sanitation Foundation/ANSI Standard No. 42 in 20″ x 4.5″ Size
Fine Filtration + Fast Acting Sanitisation Kills 99.9% of Parasites, Bacteria & Viruses at High Volume Flow Rates
Watermark Certified to Australian Plumbing Standards AS/NZS 3497
Quick and Straightforward Installation

Specs/Performance

Storage Tank Sizes

Dimensions H/W/D (cm): 87/61/22
Operating Pressure: 20 psi (140 kPa) – 70 psi (500 kPa)
Operating Temperature: 1°C – 50°C (protect from freezing temperatures)
Watermark Certified: Yes under Certificate No. 23247
Connection Type:
- Inlet: 1″ BSP Female
- Outlet: 1″ BSP Male OR 3/4″ BSP Female
Max Flow: 60 Ltrs/min (*System tested to 160 Ltrs/min. Maximum flow measured without cartridge. Refer to cartridge specs for flow rates.)
Initial ΔP @ Flow: 10 kPa @ 57 Ltrs/min
UV System
- Dosage + Flow Rates
  - 40mJ/cm² @ 75L/Min
  - 30mJ/cm² @ 105L/Min
  - Earthing: Before operating this unit, it must be earthed. Simply attach the supplied earthing cable from the UV chamber to the UV Ballast
  - Please Note: Even though the UV System that comes with this kit is capable of filtration at 75-105 Litres Per Minute, the flow rate capacity of the entire filtration system is limited to 60 Litres Per Minute due to the 20″ x 4.5″ sized filter housing.
- Replacement Parts:
  - H7-90-Lamp – 48W High Output UV Lamp, 4 Pin 436mm length
  - H7-90-Thimble – Quartz Thimble 470mm length, 23mm outer diameter
  - GT7-2NSF-OR – 1x O-Ring 23mm outer diameter
  - H7-90-PS – Certified 4 Pin Ballast 42-105W (240V) Australian Plug + Earthing Cable
Cartridges
- Cartridge Size: 20″ x 4.5″ (Extra Large)
- Cartridge Life: 6-12 Months depending on inlet water quality.
Pre-Treatment Specs
- Hardness < 120 mg/L
- Turbidity < 1.0 NTU
- Iron < 0.3 mg/L
- Manganese < 0.05 mg/L
- Tannins < 0.1 mg/L
- Filtration < 5uM Particulate Filtration

If your water quality parameters do not meet these criteria, please contact us for pre-treatment recommendations.

Twin Whole House Water Filter System 20" x 4.5" High Flow Filter Cartridge Housings

The Twin 20″ x 4.5″ Whole House Filtration System houses your choice of Sediment Cartridges for improved water clarity and protection against particulate matter damage within the UV System, and Coconut Carbon Cartridges to reduce tastes/odours, and impart a subtly-sweet flavour into the filtered water. Please Note: Even though the UV System that comes with this kit is capable of filtration at 75-105 Litres Per Minute, the flow rate capacity of the entire filtration system is limited to a max flow of 60 Litres Per Minute due to the 20″ x 4.5″ sized filter housing.

Kit Includes:

Twin Whole House Filter System (Pre-Installed Frame)
Opening Spanner
2x Pressure Gauges
Instruction/Warranty Sheet
Your Choice Of Filters (Additional Charges Apply)