Triple Cartridge ‘Free-Standing’ Rainwater Filtration System

Filtatank FT-300



Product Info

Product Description


Triple 20″ x 4.5″ Whole House Rainwater Filter Systems remove unwanted sediment through a 10-micron polyester pleated cartridge, 5-micron polyester spun and then a 5-micron  silver impregnated carbon cartridge to remove colour, taste and odour. Silver is used to inhibit the growth of bacteria on the cartridge. Pressure gauges indicate water inlet and outlet pressure.


The unique ‘Free-Standing’ galvanised support frame supports clear filter housings and is fully plumbed with 25mm stainless steel pipework. Supplied with a polyethylene weather protection cover. All systems come fully assembled ready to go.


1 x 10 Micron Polyester Pleated cartridge for dirt and sediment removal

1 x 5 Micron Polyester Spun cartridge to remove finer silt particles

1 x 5 Micron Silver Carbon Block for colour, taste and odour removal

1 x Filter housing opening handle

1 x User manual


*(Limited to most metropolitan districts at our discretion)


Filtatank rainwater filtration systems are made from the highest quality components available on the market to provide a superior quality product that is very simple to maintain and operate.  Designed to removed sediment, colour, taste and odour from the rainwater supply.

Superior System Quality, Warranty & Performance

Each Filtatank rainwater filtration system is hand-built and assembled in Australia by the team at The Tank Doctor. With over 15-years experience selling and installing rainwater filtration systems, you are assured of an extremely high quality product with excellent after sales support.


  • System support frame designed and built in Australia from galvanised steel with painted finish
  • Italian made, patented, clear Atlas filter housings
  • Dual stainless steel pressure gauges indicate accurate water inlet and outlet pressure across the filtration system
  • Fully plumbed with high quality 316 stainless steel components
  • Water inlet and outlet isolation taps along with a handy flush tap
  • Protected with a lockable polyethylene cover makes the unit tough and durable for the Australian climate
  • 5-year structural warranty

Unique Clear Filter Housings for Quick & Easy Inspection

Unique clear filter housings allow quick and easy visual inspection of the filter cartridge condition at all times. Clear housings are only possible thanks to the polyethylene protection cover which keeps the filter system out of direct sunlight.

Patented Design

Filtatank systems use the very best quality Italian made filter housings. Patented one-piece housing tops ensure leak-free connection between housings with extreme rigidity and structural strength across the whole filtration system.


With a pressure rating of 120psi and 3-year warranty, the filter housings surpass all other systems with ease.


The difference between the Filtatank Twin and Triple cartridge rainwater filtration system is the addition of a 5-micron poly spun filter cartridge (in stage two of the triple system). This cartridge is designed to capture finer particles following the 10-micron pleated first stage cartridge. This will protect the silver carbon cartridge which is only designed to absorb colour, taste and odour and doesn’t prefer a lot of dirt particles.


The twin system is ideal for the standard size family home with decent quality rainwater. If the water is quite dirty and brown in colour and there is a high demand on the filter system then we recommend installing the triple cartridge filter system.

Fully Assembled System for Quick & Easy Installation

Quick and easy installation of Filtatank systems is thanks to the unique ‘Free-Standing’ filter frame designed and made in Australia. Each system is ‘Plug and Play’, fully plumbed and ready to go. Systems can be installed next to rainwater tanks, out in a paddock or next to the house making Filtatank systems a brilliant option for all different applications. They can even be quickly and easily transported to different locations such as building or mining sites where on-site water filtration is required.


All that is required is a flat base prepared and plumbing connection to the 25mm inlet and outlet water ports.


Each system includes a lockable polyethylene weather protection cover which is tough and durable to protect the system from the harsh Australian climate.


System dimensions: 1000mm W x 550mm D x 920mm H

Fabrication of the filter system components by Atlas Filtri in Italy

Filtatank Free-Standing Installation

Additional information

Weight 60 kg
Dimensions 120 × 75 × 107 cm

System dimensions: 1000mm W x 550mm D x 920mm H
Maximum Filter Housing Flow Rate: 24 GPM (90 lpm) (5.4 m³/hr)
• Stage 1: 10 Micron Polyester Pleated cartridge for dirt and sediment removal
• Stage 2: 5 Micron Silver Carbon Block for colour, taste and odour removal

Maximum Operation Pressure: 120psi (8.3bar)
Connection Size: Inlet / outlet 1″ BSP

All Systems include the following as standard:
• Filter Housing Opening Handle
• User Manual
• Filter cartridges

• 5- year system structural warranty