The Ornamental Airbrick (OAB) is available in three sizes: 225mm × 75mm (2.8kg), 225mm × 150mm (4.1kg), and 225mm × 225mm (5.8kg). All sizes have a uniform depth of 75mm, making them consistent to install across a subfloor ventilation course.
Established 1893 | BS 460:2002 Certified | UK & International Supply | Expert Technical Support | 0333 987 4452
£34.14 – £49.62Price range: £34.14 through £49.62 +VAT
Our cast iron Og Gutter Drop End Outlet and cast iron drop end outlet for Og
are suited to most period property renovations. Cast iron ogee gutter is available
in primed and black as standard.
Sizes Available:
100mm (4″)
115mm (4.5″)
125mm (5″)
Cast iron Og drop end outlet external: OG4021A, OG4521A, OG5021A, XOG4021A, XOG4521A, XOG5021A
Cast iron Og drop end outlet internal: OG4022A, OG4522A, OG5022A, XOG4022A, XOG4522A, XOG5022A
A genuine cast iron rainwater system with the traditional ogee (OG) curved pattern.
The cast iron ogee gutter drop end outlet provides a downpipe connection at the end of an ogee gutter run, used where the run terminates and drainage drops to a downpipe from the end of the section rather than from a central nozzle outlet. A common requirement on shorter runs, corner situations, and buildings where the pipe position is dictated by the facade layout.
Manufactured in solid cast iron to BS 460:2002 and available in the three standard ogee sizes: 100mm (4″), 115mm (4.5″), and 125mm (5″). Supplied in primed or factory black finish. Maintains the ogee S-curve profile at the termination point.
Specified on listed buildings and heritage restoration projects across England and Wales where the cast iron ogee is the correct historic profile. Accepted by conservation officers as the appropriate fitting for period rainwater work.
Compatibility: Cast iron ogee gutter 100mm, 115mm, 125mm. For specification support, call 0333 987 4452.
| 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, 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 |
|---|---|
| Socket | Internal, External |
The Ornamental Airbrick (OAB) is available in three sizes: 225mm × 75mm (2.8kg), 225mm × 150mm (4.1kg), and 225mm × 225mm (5.8kg). All sizes have a uniform depth of 75mm, making them consistent to install across a subfloor ventilation course.
The H1 is available to accept round pipe connections in 65mm, 75mm, 100mm, and 150mm diameters. The 65mm and 75mm variants measure 305mm wide by 197mm deep and 210mm high. The 100mm variant measures 355mm wide by 230mm deep and 240mm high. A 150mm connection option is also available — please contact the team for dimensions.
It is possible for us to supply towel warmers with an electric heating element in them. The Electrad system is a unique system available to us, that enables independent heating of towel rails and radiators via the properties electrical system.
The Ornamental Airbrick is most appropriate on Victorian Gothic buildings — churches, chapels, vicarages, almshouses, collegiate buildings, and high-specification estate architecture — where decorative ironwork was part of the original design. It suits listed building replacements in kind and heritage new build where period accuracy in detailing is expected.
The right size depends on the width of your gutter run and the volume of water you need to collect. The Strayton H42A is available in four widths: 305mm (12"), 355mm (14"), 457mm (18"), and 610mm (24"). As a general guide, wider hoppers suit larger roof areas and heavier rainfall zones. If you are unsure, our team can advise based on your gutter profile and catchment area — call 0333 987 4452.
Yes. Cast iron hopper heads are the historically appropriate choice for listed buildings, and are generally preferred by conservation officers and local planning authorities over modern plastic alternatives. Tuscan Foundry cast iron hopper heads are manufactured in solid grey iron and are suitable for use on listed buildings and within conservation areas. A linseed oil finish is also available, which is particularly appropriate for sensitive heritage projects.
The School Board Airbrick (F020801AFC) is available in three standard sizes: 225mm × 75mm, 225mm × 150mm, and 225mm × 225mm. These correspond to one-, two-, and three-brick-course heights and allow ventilation requirements to be met across a range of subfloor and wall opening sizes.
Yes. Cast iron is the material required by most conservation officers and listed building consents for the replacement or replication of traditional rainwater goods. Our hopper heads are produced in solid cast iron and we can assist with specification notes or material statements for planning purposes if required.
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.
The Antique Black cast iron version is suitable for external use. The Polished Lacquered version is best suited to interiors or sheltered external locations where the polished finish will be protected from weathering. The Polished Brass version is suited to interior and semi-exposed locations. For external applications on exposed elevations, the Antique Black finish is the recommended specification.


