The H542A measures 240mm wide x 240mm deep x 290mm high, making it well suited to a compact square profile suited to smaller Georgian and Victorian properties, extensions and outbuildings.
Established 1893 | BS 460:2002 Certified | UK & International Supply | Expert Technical Support | 0333 987 4452
£160.61 – £240.02Price range: £160.61 through £240.02 ex VAT (£192.73 – £288.02 inc VAT)
UK delivery from £45. Longer items are despatched palletised. See delivery rates.
The Rectangular Pipe to Round Connector provides a transition fitting between a cast iron rectangular downpipe and a cast iron round downpipe, allowing the two pipe systems to be joined cleanly in a single run. Used where a rectangular pipe at the upper part of the elevation transitions to a round pipe — for example where the rectangular section connects to a round underground drainage system, or where an existing round pipe is being connected to a new rectangular installation above.
An important practical fitting on heritage restoration projects where the existing above-ground pipe is rectangular and the below-ground or transition pipework is round. Manufactured in cast iron to BS 460:2002. Available in sizes to suit the standard rectangular pipe range. For specification support, call 0333 987 4452.
| Size/Finish | Primer 100mm x 75mm, Primer 125mm x 75mm, Primer 125mm x 100mm, Primer 150mm x 100mm |
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The H542A measures 240mm wide x 240mm deep x 290mm high, making it well suited to a compact square profile suited to smaller Georgian and Victorian properties, extensions and outbuildings.
The Ornamental Airbrick is suited to Victorian villas, bay-fronted terraces, Gothic Revival institutional buildings, church halls, and civic buildings where decorative ironwork is part of the architectural language. It is also appropriate for listed buildings and conservation area properties where the airbrick is on a prominent elevation and the ventilation grille is expected to carry decorative character.
The Brass Rooflight Pole Winder Opener 300mm is a screw-jack operated rooflight opener designed for manual control of timber-framed skylights and Lumen Rooflights. The 300mm fixed arm is suited to standard rooflight positions and is finished in polished brass.
The in-house Premier Extra coating is formulated for a life expectancy of around 10 years under normal weather conditions, provided any impact damage or surface scuffing is made good promptly. Coastal locations or higher pollution levels can shorten this, so it's worth asking your local stockist or paint manufacturer for site-specific advice.
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.
Hopper heads are supplied in red oxide primer ready for on-site painting, or pre-finished in black. A full range of Heritage Colours in traditional linseed oil paint is also available on request — please contact us for the swatch chart.
Please call 0333 987 4452 or use the contact form with the size, quantity and connection details, and we'll provide a quotation.
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.
Yes — we strongly recommend painting all products before installation to ensure full coverage on every surface, which reduces long-term maintenance. Standard Premier Rainwater products are supplied in a grey metal primer with rust inhibitors and need two undercoats and one top coat (or one undercoat and two top coats) of a good quality exterior paint.
Please call 0333 987 4452 or use the contact form with the size, quantity and connection details, and we'll provide a quotation.


