The H525 measures 270mm wide x 208mm deep x 285mm high, making it well suited to smaller period properties, extensions and outbuildings.
Established 1893 | BS 460:2002 Certified | UK & International Supply | Expert Technical Support | 0333 987 4452
£84.66 +VAT
A genuine cast iron rainwater pattern orignally used in and around Nottingham, hence Notts Ogee. The profile is only available in the one size (4.5″) and has a flat base unlike the more traditional ogee (OG) curved pattern.
The cast iron Notts OG nozzle outlet connects the Notts Ogee gutter run to the downpipe. The asymmetric front face of the Notts OG profile is maintained at the outlet point, preserving the visual consistency of the installation on Nottinghamshire and East Midlands period properties where this regional profile is the standard.
Because the Notts OG is an asymmetric profile, the nozzle outlet has a specific orientation — it cannot be reversed. Confirm the correct internal or external variant and the position of the downpipe relative to the gutter run before ordering.
Manufactured in solid cast iron to BS 460:2002. Single size 115mm (4.5″). Supplied in primed or factory black finish. Specified on listed buildings and heritage restoration projects throughout Nottingham, Derby, Leicester, and the wider East Midlands. Accepted by conservation officers in the region as the appropriate fitting for period Notts OG rainwater systems.
Compatibility: Notts OG cast iron gutter 115mm (4.5″) only. For specification support, call 0333 987 4452.
| Size | 65mm, 75mm |
|---|
The H525 measures 270mm wide x 208mm deep x 285mm high, making it well suited to smaller period properties, extensions and outbuildings.
Our cast iron hopper heads are available with 65mm, 75mm and 100mm round outlets, 75mm, 100mm and 125mm square outlets, and 100x75mm, 125x100mm and 150x125mm rectangular outlets, to match the downpipe already on site or specified for the project.
Our standard spike or sturt length is 300mm (12″). Other sizes are available upon request.
The louvre face provides directional airflow and offers some resistance to driven rain entering the subfloor void, making it a practical choice for exposed elevations or properties in areas with significant prevailing wind and rainfall. The square-grid (school board) pattern offers a larger open ventilation area but less weather protection.
The Gothic foliate tracery design of the Ornamental Airbrick provides a good free-flow ventilation area relative to its face size. The open area is comparable to other standard cast iron airbrick patterns. The visual density of the pattern at a distance reads as solid ironwork, which suits formal and decorative elevations without compromising subfloor ventilation effectiveness.
Yes. Our telescopic screw-jack openers and pole-operated handles are compatible with Lumen Rooflight systems. They are also suitable for use with other timber-framed rooflights and skylights fitted with appropriate catches or stays. If you are unsure of compatibility, call us on 0333 987 4452 and we can advise.
The School Board Airbrick is suited to Victorian and Edwardian terraced housing, mid-century school buildings, civic halls, public baths, and converted institutional buildings. Its plain square-grid face matches the utilitarian aesthetic of late-Victorian construction and is also appropriate for new heritage-style builds in conservation areas.
All of our cast iron radiators are availbale as standard with a 1/2″ BSP (15mm) connection. We are though also able to supply many of our radiators and valves with 3/4″ BSP connections. Due to the size proportions of some radiators and valves 3/4″ connections may be more suitable.
Our cast iron hopper heads are available with 65mm, 75mm and 100mm round outlets, 75mm, 100mm and 125mm square outlets, and 100x75mm, 125x100mm and 150x125mm rectangular outlets, to match the downpipe already on site or specified for the project.
Our hopper heads are available with a wide range of pipe connections to suit round, square, and rectangular downpipes. The Calnethorpe No.11 accepts round 65mm, 75mm, and 100mm; square 75×75mm, 100×100mm, and 125×125mm; and rectangular 100×75mm, 125×100mm, and 150×100mm. Connection options vary by model — please contact us to confirm availability for your chosen hopper.


