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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. -
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Our friendly service and competitive prices combined with a step-by-step support approach, make for easy rainwater product selection. -
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Our delivery drivers cover the whole of the UK (mainland only) so no matter where you are, we can get your order to you. -
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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.
REFINE PRODUCTS BY:
Size
Aluminium Outlets & Pipe Connections

There is a range of accessories for Harmer aluminium AV and Detail systems to ensure the successful installation of Harmer rainwater outlets in most types of roof construction. The range includes threaded spigot adaptors, metal deck support plates, overflow outlets and couplings.
Click here for Aluminium Roof Outlets or Cast Iron Roof Outlets or Insulated Roof Outlets
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Available
Harmer Roof Detail Push Fit Parapet Downspout
Roof Detail Push Fit Parapet Downspout, available in Cast Iron or Aluminium
0
From
Price
£167.47
Ex VAT£200.96 Inc VAT
Available
Harmer Roof Detail Outlet Adaptor Coupling
Detail Outlet Adaptor Coupling, available in one size 75mm
0
From
Price
£21.23
Ex VAT£25.48 Inc VAT
Available
Harmer Roof Detail Outlet Duo Coupling
Detail Outlet Duo Coupling, available in three sizes 50mm, 100mm & 150mm
0
From
Price
£9.32
Ex VAT£11.18 Inc VAT
Available
Harmer Roof Detail Outlet Two Part Ductile Iron Coupling
Two Part Ductile Iron Coupling, available in three sizes 50mm, 100mm & 150mm
0
From
Price
£8.55
Ex VAT£10.26 Inc VAT
Available
Harmer Roof Detail Overflow Outlet
Roof Detail Overflow Outlet, available in two size 50/75mm & 100/150mm
0
From
Price
£178.68
Ex VAT£214.42 Inc VAT
Available
Harmer Roof Galvanised Steel Metal Deck Support
Galvansied Steel Metal Deck Support, available in sizes 50mm, 75mm, 100mm & 150mm
0
From
Price
£62.09
Ex VAT£74.51 Inc VAT
Available
Harmer SML Cast Iron Soil & Waste Reducer
SML Cast Iron Soil & Waste Reducer, available in a range of Diameters
0
From
Price
£29.03
Ex VAT£34.84 Inc VAT