BTU stand’s for British Thermal Units. This was the old (Imperial) measurement for heat in connection with plumbing. Although BTU’s is a term still commonly used within the heating and plumbing, the industry is now going over to KW’s Kilowatts.
Established 1893 | BS 460:2002 Certified | UK & International Supply | Expert Technical Support | 0333 987 4452
£95.24 – £180.68Price range: £95.24 through £180.68 +VAT
Our cast iron round rainwater pipe offset 305mm and cast downpipe offset is suited to most period property renovations. Round cast iron pipe is available in primed and black as standard.
Sizes Available:
65mm (2.5″)
75mm (3″)
100mm (4″)
150mm (6″)
Cast iron round rainwater pipe offset 305mm (12″): R2544, R3044, R4044, R6044, XR2544, XR3044, XR4044, XR6044
Our traditional cast iron rainwater pipe is available in 4 sizes. It is now common to see 2.5″ pipes used in place of the older 2″ sizing.
Our traditional cast iron rainwater pipe is available in 3 sizes. It is now common to see 2.5″ pipes used in place of the older 2″ sizing.
Cast iron gutters and pipes offer great strength and durability, a proven history of long life, low noise operation and fire resistance. Most old buildings have cast iron rainwater systems that should be maintained and preserved however; these inherent benefits make a cast iron rainwater system an ideal choice for both traditional and modern installations.
For specific technical sizes on our range of cast iron gutters, rainwater pipes or UK manufactured brackets for cast metal rainwater products.
| Pipe Size/Finish | Primer 65mm, Primer 75mm, Primer 100mm, Black Painted 65mm, Black Painted 75mm, Black Painted 100mm |
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BTU stand’s for British Thermal Units. This was the old (Imperial) measurement for heat in connection with plumbing. Although BTU’s is a term still commonly used within the heating and plumbing, the industry is now going over to KW’s Kilowatts.
Our cast iron hopper heads are available in a standard primed and black-painted finish, ready for on-site topcoats. Heritage colour finishes and factory-applied linseed oil paint are available on request. Linseed oil paint is a vapour-permeable, period-appropriate finish particularly well suited to listed buildings and conservation area properties.
Cast iron hopper heads from Tuscan Foundry are available in Standard Black (a factory-applied primer and topcoat finish) and Heritage Colours. A linseed oil paint finish is also available, providing a vapour-permeable, historically authentic coating that is particularly appropriate for listed buildings and conservation projects. Full finish specifications are available from the team.
Tuscan Foundry's cast iron hopper heads are available in Standard Black and Heritage Colour finishes. A linseed oil paint finish is also offered — a sustainable, vapour-permeable option particularly appropriate for listed buildings and conservation projects. Heritage colour swatches are available from the team on request.
Yes. Cast iron airbricks are the appropriate material for listed buildings and conservation area properties where the original ventilation grilles were cast iron. They maintain the character and material authenticity required by most conservation officers and listed building consent conditions. We recommend confirming the specific pattern with your conservation officer before ordering.
Our cast iron hopper heads are available in a standard primed and black-painted finish, ready for on-site topcoats. Heritage colour finishes and factory-applied linseed oil paint are available on request. Linseed oil paint is a vapour-permeable, period-appropriate finish particularly well suited to listed buildings and conservation area properties.
Yes. Polished brass is a historically appropriate finish for period and listed buildings and is generally acceptable to conservation officers. If your project requires specific confirmation, we are happy to advise — call 0333 987 4452.
Yes. A polished brass finish is historically appropriate for period buildings and is generally acceptable to conservation officers for listed building projects. If you are unsure about the specification requirements for your project, we are happy to advise — call 0333 987 4452.
Select your required size and finish options from the product page and add to cart for an instant price. For project quantities, bespoke requirements, or any specification queries, please call 0333 987 4452 or use the contact form at tuscanfoundry.com.
Available in two sizes: 225mm x 82mm (single airbrick course height) and 225mm x 150mm (double course height). Both sizes fit standard brick coursing positions and install flush into the wall face.


