Curve® is a new era leaf and debris diverter that combines sleek, sophisticated design with innovative filtering technology.

  • Removes leaves and debris. Protects tanks and stormwater systems
  • Very easy to install, self shedding, and low maintenance
  • Can capture over 99% of water with a clean screen



Curve® Features
Curve® Installation

CURVE® – Drawing water in, keeping leaves out

The Marley Curve® is a new era leaf diverter that combines sleek, sophisticated design with innovative filtering technology. Its unique screen design draws rainwater in while preventing leaves and other debris from entering into your water tank or stormwater system.

Grey Friars®

Why Marley?

15 year guarantee

We stand by our product, and back it for 15 years

Will not rust / corrode

Designed for NZ’s salt-laden coastal air

UV resistant

UV resistant to handle NZ’s harsh summer sun, high UV levels and long, hot days

100% Recyclable

Used spouting and downpipes can be returned to Marley for recycling

Made in NZ

Proudly made in New Zealand for over 40 years


Technical Details

Material: uPVC (unplasticised PVC)

Certified for use with potable water: Certified to AS/NZS 4020: 2005

Water Capture: Can capture over 99% of water with a clean screen.*

Screen Aperture: 0.8mm

Guarantee: 15 years if installed as part of a Marley spouting and downpipe system, and properly maintained.

Compatible Downpipe Systems:

  • RP80® 80mm round downpipe – All colours.
  • Adaptors available to enable use with Marley RP65® 65mm round downpipe (White only).
  • Curve should not be installed on downpipes larger than 80mm.


  • The Curve is quick and simple to install and comes with two downpipe clips a self-adhesive cutting and instruction template. If unsure please speak to a trade professional.


  • If Curve is being connected to a tank, the tank must be at least 300mm lower than the spouting and the Curve must be above the inlet to the tank.
  • Consideration should always be given as to where the debris will be discharged e.g. if possible avoid discharging onto pathways and decks.


  • Regularly check the filter screen to ensure that there are no debris blocking the water flow.
  • Routinely wash the filter screen. Simply slide the quick release upper body up the pipe to allow removal of the screen from the bottom unit, then rinse.
  • Replacement filter screens are available if required.

*Based on simulating light to heavy rainfall under controlled test conditions. Actual performance will vary depending on the particular environment, climatic conditions and presence of leaf matter and other debris.

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