Standard Whole House Rainwater Filter System

Rainwater is a suitable drinking water supply providing the water is clear, has little taste or smell, and is free from suspended material. Rainwater needs to be free of disease causing microorganisms (bacteria, viruses and protozoa) and harmful levels of chemicals, to ensure a safe drinking water supply.

Contamination of collected rainwater with disease causing microorganisms from birds and other animals poses the biggest risk to health as contaminations are not always visible.

Rainwater filtration is effective in removing and/or reducing sediments, chemicals, objectionable tastes, odours and colour, but filtration alone will not remove bacteria or viruses.


Microbiological safe drinking water requires purification for the removal of bacteria, cysts and viruses.

Seagull®IV water purifiers combine the advanced “Structured Matrix™” technology with the strength and endurance of modern materials. All Seagull®IV purification systems are independently certified to meet USEPA guide standard protocol for microbiological purifiers against bacteria, cysts and viruses. Plus, Seagull IV systems excel at removing chemical and aesthetic contaminants including herbicides, pesticides, chlorine and foul tastes, odours and colours, for great tasting water on demand.

Pairing a rainwater filtration system with the Seagull®IV system will ensure safe drinking water from any rainwater tank.


  • 2 x 20″ x 4.5″ Big Blue filter housing 1″ inlet/outlet
  • 1 x Polyester pleated filter cartridge
  • 1 x KX Carbon Block filter cartridge
  • 1 x Stainless steel mounting bracket
  • 1 x Opening handle

KX CTO Carbon Block

  • 5 Micron
  • Made in USA
  • Chlorine Taste and Odour Reduction*
  • Sediment Reduction*
  • Performance Tested and Verified by Independent Laboratory Testing

Polyester Pleated Filter

  • 10 Micron
  • Made in New Zealand
  • Cleanable and reusable
  • Reduces medium Sediment
  • Low pressure drop
  • High dirt holding capacity
  • Captures suspended solids
  • Food grade 2 Pot Urethane end caps

Filter cartridges should be changed every 12 months with brand new filters ensuring clean, fresh water all year round. The polyester pleated filters can be reused if removed, rinsed and dried. This can extend the life of the polyester pleated filters

Combined with the Seagull®IV purifier will ensure microbiological safe drinking water