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  • Industry leading Our sales and technical team have over 20 years’ experience working with the industry leading rainwater systems available in the UK. Industry leading
    Our sales and technical team have over 20 years’ experience working with the industry leading rainwater systems available in the UK.
  • Expert advice Our friendly service and competitive prices combined with a step-by-step support approach, make for easy rainwater product selection. Expert advice
    Our friendly service and competitive prices combined with a step-by-step support approach, make for easy rainwater product selection.
  • Nationwide delivery Our delivery drivers cover the whole of the UK (mainland only) so no matter where you are, we can get your order to you. Nationwide delivery
    Our delivery drivers cover the whole of the UK (mainland only) so no matter where you are, we can get your order to you.
  • Premium quality Our aluminium, steel, cast iron, plastic & GRP rainwater systems are all sourced from the leading manufacturers in the UK to ensure they are of the highest quality. Premium quality
    Our aluminium, steel, cast iron, plastic & GRP rainwater systems are all sourced from the leading manufacturers in the UK to ensure they are of the highest quality.

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Outlet Size

Grate

Size

Large Sump Outlets

Large Sump Outlets

The Harmer cast iron large sump range provides a deep outlet sump for 100 and 150mm vertical pipe connection. The outlets are threaded to 4” and 6” BSP and can be used with Harmer adaptors for connection to Cast Iron, HDPE, PVCu and Stainless Steel pipework systems. A comprehensive range of grates is available for use in different types of application including heavy duty ductile iron circular and square grates which are suitable for areas with vehicular access.

Click here for Aluminium Roof Outlets or Insulated Roof Outlets

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