Round Bar Duplex Opener – Centre Ring

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.

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.

For rooflights directly above a worktop or sink, a telescopic screw-jack hand winder is the most practical choice. Available in polished brass, satin chrome, and polished chrome, these openers allow controlled ventilation from a fixed handle position without requiring a pole. The 150mm or 250mm size is typically appropriate for standard-height kitchen rooflights.

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 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.

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 Cast Iron Louvre Airbrick suits Victorian, Edwardian, and inter-war residential and commercial properties where the louvre-pattern vent was the standard specification. It is the correct like-for-like replacement on listed buildings and conservation area properties, and suits new heritage-style construction requiring an authentic period ventilation grille.

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.

The polished chrome telescopic rooflight hand winder is suited to contemporary, Georgian-revival, and high-specification interiors where a bright chrome finish is required to complement existing ironmongery. It is compatible with Lumen Rooflights and timber-framed skylights.

Yes. The ornamental foliate pattern was widely used in Victorian construction and is appropriate for Grade II listed buildings and conservation area properties. Its decorative character is often preferable to a plain pattern on prominent or formal elevations. We recommend confirming the pattern with your conservation officer as part of any listed building consent application.