Prices for standard cast iron hopper heads are shown on the product page. For larger quantities, bespoke sizing, heritage colour finishes, or full rainwater system specifications, please call 0333 987 4452 or use the contact form.
Established 1893 | BS 460:2002 Certified | UK & International Supply | Expert Technical Support | 0333 987 4452
£32.69 – £81.13Price range: £32.69 through £81.13 +VAT
Cast iron half-round gutter drop end available with both External and Internal connections. Our unique cast iron guttering drop end is part of our heritage rainwater system.
Sizes Available:
100mm (4″) cast iron gutter
115mm (4.5″) cast iron gutter
125mm (5″) cast iron gutter
150mm (6″) cast iron gutter
External Drop End – HR4021A, HR4521A, HR5021A, HR6021B, XHR4021A, XHR4521A, XHR5021A, XHR6021B
Internal Drop End – HR4022A HR4522A HR5022A HR6022B XHR4022A XHR4522A XHR5022A XHR6022B
Common half round drop end internal or external.
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.
| Size/Finish | Primer 100mm to 65mm Out, Primer 100mm to 75mm Out, Primer 115mm to 65mm Out, Primer 115mm to 75mm Out, Primer 125mm to 65mm Out, Primer 125mm to 75mm Out, Primer 150mm to 75mm Out, Primer 150mm to 100mm Out, Black Painted 100mm to 65mm Out, Black Painted 100mm to 75mm Out, Black Painted 115mm to 65mm Out, Black Painted 115mm to 75mm Out, Black Painted 125mm to 65mm Out, Black Painted 125mm to 75mm Out, Black Painted 150mm to 75mm Out, Black Painted 150mm to 100mm Out |
|---|---|
| Socket | Internal, External |
Prices for standard cast iron hopper heads are shown on the product page. For larger quantities, bespoke sizing, heritage colour finishes, or full rainwater system specifications, please call 0333 987 4452 or use the contact form.
The H1A is available with round pipe connections in 65mm, 75mm, 100mm, and 150mm diameters. Please specify your required connection size when ordering, as this determines the SKU. If you are unsure of the correct pipe size for your project, our team can advise — call 0333 987 4452.
The H460 accepts round pipe connections in 65mm, 75mm, and 100mm diameters. Square pipe connections are available in 75×75mm, 100×100mm, and 125×125mm. Rectangular connections include 100×75mm, 125×100mm, and 150×100mm options. Connection type is selected at the point of order.
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.
Prices are shown on each product page. For project quantities, bespoke specifications, or conservation-related queries, please call us on 0333 987 4452 or use the contact form on our website.
Yes. Polished brass ironmongery is historically appropriate for period buildings and is generally acceptable to conservation officers for listed building projects. If you require confirmation for your specific scheme, we are happy to advise — call 0333 987 4452.
The Paxton H82 accepts round, square, and rectangular pipe connections. Round: 65mm, 75mm, and 100mm. Square: 75×75mm, 100×100mm, and 125×125mm. Rectangular: 100×75mm, 125×100mm, and 150×100mm. Bespoke adaptations including double pipe connections are also available on request. Please confirm your required connection type when ordering.
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.
The Antique Black finish suits Victorian, Edwardian, and inter-war buildings where ventilation ironwork was painted rather than polished — estate houses, terrace housing, civic buildings, and rural properties. It is also correct for listed buildings and conservation area properties requiring like-for-like replacement of original ornamental cast iron vents.
Yes. Cast iron airbricks are frequently specified for listed buildings and conservation area properties precisely because they replicate the material and pattern of the original Victorian and Edwardian ventilation grilles. Local conservation officers and building control typically accept like-for-like cast iron replacements without objection. We can provide product specifications and material datasheets to support applications.


