Maelstrom Filter

Manufacturer Part
This device is designed to slow down the velocity of the water by changing the direction of its flow, uses nylon mesh bag to filter fine particulates > than 180 microns, then the water goes into the rainwater tank or pipe (if attached).

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  • 1. A single point, tank-top filter with a ground breaking U-shaped design.
  • 2. Multiple Barriers (2mm and 180 micron) filter particles 5 times smaller than is achieved with a standard tank screen.
  • 3. Reduces the hassle of cleaning leaf and debris build-up through self-flushing.
  • 4. Blocks out light, replacing tank screen and solar shield if positioned on top of the tank.
  • 5. Is a versatile product, able to be installed in a variety of pre-tank locations.
  • 6. Reduces frequency and cost of tank cleaning by lowering common sediment build up through cleaner tank water.


  • 1. Rainwater enters the Maelstrom through either of the horizontal-facing couplings.
  • 2. The rainwater then enters the Primary Filter. The unique curved filter slows the velocity of the water by changing the direction of its flow.
  • Surrounding the Primary Filter is a Secondary Filter, comprising of a nylon mesh bag which filters fine particulates larger than 180 micron. This filter assembly is easily removable and will require periodic maintenance.
  • The filtered rainwater then continues to move through the Maelstrom to the filtered water outlet and into the rainwater tank or pipe (if attached).

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    Technical Drawings
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    Key Specs
    Length 21"
    Width 21"
    Height 14"
    Weight 14lbs
    Manufacturer Rain Harvesting
    Manufacturer Part Number RHML01
    Shipping Height 14"
    Shipping Length 21"
    Shipping Weight 14lbs
    Shipping Width 21"
    Ship Class UPS