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Established 1893   |   BS 460:2002 Certified   |   UK & International Supply   |   Expert Technical Support   |   0333 987 4452

“Highline T300 Operator” has been added to your basket. View basket
Shop / Hardware & Spares / Rooflight and Window Openers / Openers Cord / D- Type Always System Opener – Bright Zinc Plated
Preston screw roof vent opener_preston skylight opener
CODE 746613 Category Openers Cord Tags Brass rooflight hand winders, Brass screwjack openers, Chrome rooflight hand winders, Chrome screwjack openers Skylight stays, Rooflight openers, Rooflight stays, Skylight openers

D- Type Always System Opener – Bright Zinc Plated

£141.77

  • D – Type Always System Opener – Bright Zinc Plated
  • Traditional window fitting that is ideal for older building schools and hospitals
  • Strong and hardwearing
  • Easy to operate
  • NOTE: Cord must be ordered separately – product code 449765
App_Timber Yes
Application Timber
Finish Bright Zinc Plated
Finish Group Zinc Plated
Length mm 153mm
Option Fanlight Opener
Price 0
Throw mm 120mm
Type Cord Operated

Additional information

FAQ Categories

  • Cast Iron Airbricks
  • Cast Iron Airvents
  • Cast Iron Hopper Heads
  • Gutter & Pipe Brackets
  • Gutters & Pipes
  • Heating
  • Rooflight Openers
All FAQ
What pipe connection sizes does the Regent Cast Iron Hopper Head No.1 accept?

What pipe connection sizes does the Regent Cast Iron Hopper Head No.1 accept?

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.

Are hit and miss vents suitable for listed buildings?

Are hit and miss vents suitable for listed buildings?

Yes. Decorative cast iron and brass ventilation grilles of this pattern were widely used in Victorian and Edwardian buildings, and like-for-like replacements are generally accepted by conservation officers for listed building works. We can provide product specifications and material details to support listed building consent applications if required.

What sizes are available for the School Board Airbrick?

What sizes are available for the School Board Airbrick?

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.

What building types is the Satin Chrome Rooflight Hand Winder Opener suited to?

What building types is the Satin Chrome Rooflight Hand Winder Opener suited to?

The satin chrome telescopic rooflight hand winder is well suited to contemporary and transitional interiors where a brushed chrome finish complements modern or minimal ironmongery. It is compatible with Lumen Rooflights and timber-framed skylights.

Which rooflight opener is best for a skylight above a kitchen sink or worktop?

Which rooflight opener is best for a skylight above a kitchen sink or worktop?

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.

What building types is the Brass Rooflight Hand Winder Opener – Telescopic suited to?

What building types is the Brass Rooflight Hand Winder Opener – Telescopic suited to?

This opener is particularly well suited to period and heritage properties — Georgian and Victorian terraces, conservation area houses, traditional orangeries, and listed buildings where a brass finish is required to complement existing ironmongery. It is compatible with Lumen Rooflights and most timber-framed skylights.

What pipe connection sizes does the Rectangular Box Hopper Head Plain No.46 accept?

What pipe connection sizes does the Rectangular Box Hopper Head Plain No.46 accept?

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.

How does a hit and miss vent work?

How does a hit and miss vent work?

A hit and miss vent has a sliding plate on the back of the grille that can be opened, partially restricted, or closed entirely without removing the vent from the wall. This allows airflow to be controlled from inside the building, making it suitable for underfloor void ventilation and through-wall ventilation where adjustable airflow is needed.

What is the difference between the Antique Black, Polished Lacquered, and Polished Brass finishes?

What is the difference between the Antique Black, Polished Lacquered, and Polished Brass finishes?

The Antique Black finish is cast iron with a blackened surface — the most historically accurate finish for cast iron ironwork and the most appropriate for the majority of heritage applications. Polished Lacquered is cast iron with a bright polished surface sealed with clear lacquer, suited to interiors and sheltered locations where polished ironwork is the specification. Polished Brass is solid polished brass throughout — the correct choice where existing building fittings are in brass or where a warm metal tone is required.

Is a brass rooflight opener handle suitable for a listed building?

Is a brass rooflight opener handle suitable for a listed building?

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.

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