Established 1893 | BS 460:2002 Certified | UK & International Supply | Expert Technical Support | 0333 987 4452
Price range: £284.50 through £1,983.80 ex VAT (£341.40 – £2,380.56 inc VAT)
Cast iron side offset for rectangular downpipes, 100x75mm to 150x100mm, 56mm to 610mm, left or right hand, eared or un-eared, in primer or black painted finish.
Measuring the projection: measured along the wall face between the centre lines of the upper and lower pipe, not face to face. State left or right hand when ordering. See the measuring diagram in the gallery, or our guide to measuring an offset for all sizes and a worked example.
UK delivery from £45. Longer items are despatched palletised. See delivery rates.
The Rectangular Pipe Offset Side steps a cast iron rectangular downpipe sideways along the wall, through the narrow face of the pipe, to clear a window, opening or feature while keeping the pipe tight to the wall.
Side offsets are handed. Choose left hand or right hand according to the direction the pipe steps as you face the wall from outside. Each is made as a single casting with two 112.5° bends and a straight between them, giving offsets from 56mm to 610mm. The head carries the moulded socket band, available eared with integral fixing ears, or un-eared for runs fixed with holderbats or earbands.
Where the pipe needs to step outwards from the wall rather than sideways, use the Rectangular Pipe Offset Front.
All fittings in our rectangular range are cast iron to BS 460:2002, made to the same moulded profile so pipes and fittings line up neatly on the elevation. Every fitting is supplied either in primer, ready for painting on site, or in factory black. For listed buildings and conservation areas we also offer hand-applied linseed oil paint in heritage colours, which stays breathable and flexible and is straightforward to maintain. Stocked items are usually dispatched within 5 to 7 working days; allow around 6 to 7 weeks where a linseed oil finish is specified.
Rectangular pipe sizes: 100mm x 75mm (4″ x 3″), 125mm x 70mm, 125mm x 100mm (5″ x 4″) and 150mm x 100mm (6″ x 4″).
Suitable for listed buildings, conservation areas and heritage restoration. For specification support or a project quotation, call 0333 987 4452.
| Size/Finish | Primer 100 x 75mm (56mm Offset), Primer 100 x 75mm (75mm Offset), Primer 100 x 75mm (115mm Offset), Primer 100 x 75mm (150mm Offset), Primer 100 x 75mm (230mm Offset), Primer 100 x 75mm (305mm Offset), Primer 100 x 75mm (380mm Offset), Primer 100 x 75mm (457mm Offset), Primer 100 x 75mm (533mm Offset), Primer 100 x 75mm (610mm Offset), Primer 125 x 70mm (56mm Offset), Primer 125 x 70mm (75mm Offset), Primer 125 x 70mm (115mm Offset), Primer 125 x 70mm (150mm Offset), Primer 125 x 70mm (230mm Offset), Primer 125 x 70mm (305mm Offset), Primer 125 x 70mm (380mm Offset), Primer 125 x 70mm (457mm Offset), Primer 125 x 70mm (533mm Offset), Primer 125 x 70mm (610mm Offset), Primer 125 x 100mm (56mm Offset), Primer 125 x 100mm (75mm Offset), Primer 125 x 100mm (115mm Offset), Primer 125 x 100mm (150mm Offset), Primer 125 x 100mm (230mm Offset), Primer 125 x 100mm (305mm Offset), Primer 125 x 100mm (380mm Offset), Primer 125 x 100mm (457mm Offset), Primer 125 x 100mm (533mm Offset), Primer 125 x 100mm (610mm Offset), Primer 150 x 100mm (56mm Offset), Primer 150 x 100mm (75mm Offset), Primer 150 x 100mm (115mm Offset), Primer 150 x 100mm (150mm Offset), Primer 150 x 100mm (230mm Offset), Primer 150 x 100mm (305mm Offset), Primer 150 x 100mm (380mm Offset), Primer 150 x 100mm (457mm Offset), Primer 150 x 100mm (533mm Offset), Primer 150 x 100mm (610mm Offset), Black Painted 100 x 75mm (56mm Offset), Black Painted 100 x 75mm (75mm Offset), Black Painted 100 x 75mm (115mm Offset), Black Painted 100 x 75mm (150mm Offset), Black Painted 100 x 75mm (230mm Offset), Black Painted 100 x 75mm (305mm Offset), Black Painted 100 x 75mm (380mm Offset), Black Painted 100 x 75mm (457mm Offset), Black Painted 100 x 75mm (533mm Offset), Black Painted 100 x 75mm (610mm Offset), Black Painted 125 x 70mm (56mm Offset), Black Painted 125 x 70mm (75mm Offset), Black Painted 125 x 70mm (115mm Offset), Black Painted 125 x 70mm (150mm Offset), Black Painted 125 x 70mm (230mm Offset), Black Painted 125 x 70mm (305mm Offset), Black Painted 125 x 70mm (380mm Offset), Black Painted 125 x 70mm (457mm Offset), Black Painted 125 x 70mm (533mm Offset), Black Painted 125 x 70mm (610mm Offset), Black Painted 125 x 100mm (56mm Offset), Black Painted 125 x 100mm (75mm Offset), Black Painted 125 x 100mm (115mm Offset), Black Painted 125 x 100mm (150mm Offset), Black Painted 125 x 100mm (230mm Offset), Black Painted 125 x 100mm (305mm Offset), Black Painted 125 x 100mm (380mm Offset), Black Painted 125 x 100mm (457mm Offset), Black Painted 125 x 100mm (533mm Offset), Black Painted 125 x 100mm (610mm Offset), Black Painted 150 x 100mm (56mm Offset), Black Painted 150 x 100mm (75mm Offset), Black Painted 150 x 100mm (115mm Offset), Black Painted 150 x 100mm (150mm Offset), Black Painted 150 x 100mm (230mm Offset), Black Painted 150 x 100mm (305mm Offset), Black Painted 150 x 100mm (380mm Offset), Black Painted 150 x 100mm (457mm Offset), Black Painted 150 x 100mm (533mm Offset), Black Painted 150 x 100mm (610mm Offset) |
|---|---|
| Hand | Left, Right |
| Eared/Un-Eared | Eared, Un-Eared |
Cross-reference
| Primer 100 x 75mm (56mm Offset), Un-Eared | RS4340 |
| Primer 100 x 75mm (56mm Offset), Eared | RS4340 + ears |
| Primer 100 x 75mm (75mm Offset), Un-Eared | RS4341 |
| Primer 100 x 75mm (75mm Offset), Eared | RS4341 + ears |
| Primer 100 x 75mm (115mm Offset), Un-Eared | RS4342 |
| Primer 100 x 75mm (115mm Offset), Eared | RS4342 + ears |
| Primer 100 x 75mm (150mm Offset), Un-Eared | RS4343 |
| Primer 100 x 75mm (150mm Offset), Eared | RS4343 + ears |
| Primer 100 x 75mm (230mm Offset), Un-Eared | RS4344 |
| Primer 100 x 75mm (230mm Offset), Eared | RS4344 + ears |
| Primer 100 x 75mm (305mm Offset), Un-Eared | RS4345 |
| Primer 100 x 75mm (305mm Offset), Eared | RS4345 + ears |
| Primer 100 x 75mm (380mm Offset), Un-Eared | RS4346 |
| Primer 100 x 75mm (380mm Offset), Eared | RS4346 + ears |
| Primer 100 x 75mm (457mm Offset), Un-Eared | RS4347 |
| Primer 100 x 75mm (457mm Offset), Eared | RS4347 + ears |
| Primer 100 x 75mm (533mm Offset), Un-Eared | RS4348 |
| Primer 100 x 75mm (533mm Offset), Eared | RS4348 + ears |
| Primer 100 x 75mm (610mm Offset), Un-Eared | RS4349 |
| Primer 100 x 75mm (610mm Offset), Eared | RS4349 + ears |
| Primer 125 x 70mm (56mm Offset), Un-Eared | RS5340 |
| Primer 125 x 70mm (56mm Offset), Eared | RS5340 + ears |
| Primer 125 x 70mm (75mm Offset), Un-Eared | RS5341 |
| Primer 125 x 70mm (75mm Offset), Eared | RS5341 + ears |
| Primer 125 x 70mm (115mm Offset), Un-Eared | RS5342 |
| Primer 125 x 70mm (115mm Offset), Eared | RS5342 + ears |
| Primer 125 x 70mm (150mm Offset), Un-Eared | RS5343 |
| Primer 125 x 70mm (150mm Offset), Eared | RS5343 + ears |
| Primer 125 x 70mm (230mm Offset), Un-Eared | RS5344 |
| Primer 125 x 70mm (230mm Offset), Eared | RS5344 + ears |
| Primer 125 x 70mm (305mm Offset), Un-Eared | RS5345 |
| Primer 125 x 70mm (305mm Offset), Eared | RS5345 + ears |
| Primer 125 x 70mm (380mm Offset), Un-Eared | RS5346 |
| Primer 125 x 70mm (380mm Offset), Eared | RS5346 + ears |
| Primer 125 x 70mm (457mm Offset), Un-Eared | RS5347 |
| Primer 125 x 70mm (457mm Offset), Eared | RS5347 + ears |
| Primer 125 x 70mm (533mm Offset), Un-Eared | RS5348 |
| Primer 125 x 70mm (533mm Offset), Eared | RS5348 + ears |
| Primer 125 x 70mm (610mm Offset), Un-Eared | RS5349 |
| Primer 125 x 70mm (610mm Offset), Eared | RS5349 + ears |
| Primer 125 x 100mm (56mm Offset), Un-Eared | RS5440 |
| Primer 125 x 100mm (56mm Offset), Eared | RS5440 + ears |
| Primer 125 x 100mm (75mm Offset), Un-Eared | RS5441 |
| Primer 125 x 100mm (75mm Offset), Eared | RS5441 + ears |
| Primer 125 x 100mm (115mm Offset), Un-Eared | RS5442 |
| Primer 125 x 100mm (115mm Offset), Eared | RS5442 + ears |
| Primer 125 x 100mm (150mm Offset), Un-Eared | RS5443 |
| Primer 125 x 100mm (150mm Offset), Eared | RS5443 + ears |
| Primer 125 x 100mm (230mm Offset), Un-Eared | RS5444 |
| Primer 125 x 100mm (230mm Offset), Eared | RS5444 + ears |
| Primer 125 x 100mm (305mm Offset), Un-Eared | RS5445 |
| Primer 125 x 100mm (305mm Offset), Eared | RS5445 + ears |
| Primer 125 x 100mm (380mm Offset), Un-Eared | RS5446 |
| Primer 125 x 100mm (380mm Offset), Eared | RS5446 + ears |
| Primer 125 x 100mm (457mm Offset), Un-Eared | RS5447 |
| Primer 125 x 100mm (457mm Offset), Eared | RS5447 + ears |
| Primer 125 x 100mm (533mm Offset), Un-Eared | RS5448 |
| Primer 125 x 100mm (533mm Offset), Eared | RS5448 + ears |
| Primer 125 x 100mm (610mm Offset), Un-Eared | RS5449 |
| Primer 125 x 100mm (610mm Offset), Eared | RS5449 + ears |
| Primer 150 x 100mm (56mm Offset), Un-Eared | RS6440 |
| Primer 150 x 100mm (56mm Offset), Eared | RS6440 + ears |
| Primer 150 x 100mm (75mm Offset), Un-Eared | RS6441 |
| Primer 150 x 100mm (75mm Offset), Eared | RS6441 + ears |
| Primer 150 x 100mm (115mm Offset), Un-Eared | RS6442 |
| Primer 150 x 100mm (115mm Offset), Eared | RS6442 + ears |
| Primer 150 x 100mm (150mm Offset), Un-Eared | RS6443 |
| Primer 150 x 100mm (150mm Offset), Eared | RS6443 + ears |
| Primer 150 x 100mm (230mm Offset), Un-Eared | RS6444 |
| Primer 150 x 100mm (230mm Offset), Eared | RS6444 + ears |
| Primer 150 x 100mm (305mm Offset), Un-Eared | RS6445 |
| Primer 150 x 100mm (305mm Offset), Eared | RS6445 + ears |
| Primer 150 x 100mm (380mm Offset), Un-Eared | RS6446 |
| Primer 150 x 100mm (380mm Offset), Eared | RS6446 + ears |
| Primer 150 x 100mm (457mm Offset), Un-Eared | RS6447 |
| Primer 150 x 100mm (457mm Offset), Eared | RS6447 + ears |
| Primer 150 x 100mm (533mm Offset), Un-Eared | RS6448 |
| Primer 150 x 100mm (533mm Offset), Eared | RS6448 + ears |
| Primer 150 x 100mm (610mm Offset), Un-Eared | RS6449 |
| Primer 150 x 100mm (610mm Offset), Eared | RS6449 + ears |
| Black Painted 100 x 75mm (56mm Offset), Un-Eared | XRS4340 |
| Black Painted 100 x 75mm (56mm Offset), Eared | XRS4340 + ears |
| Black Painted 100 x 75mm (75mm Offset), Un-Eared | XRS4341 |
| Black Painted 100 x 75mm (75mm Offset), Eared | XRS4341 + ears |
| Black Painted 100 x 75mm (115mm Offset), Un-Eared | XRS4342 |
| Black Painted 100 x 75mm (115mm Offset), Eared | XRS4342 + ears |
| Black Painted 100 x 75mm (150mm Offset), Un-Eared | XRS4343 |
| Black Painted 100 x 75mm (150mm Offset), Eared | XRS4343 + ears |
| Black Painted 100 x 75mm (230mm Offset), Un-Eared | XRS4344 |
| Black Painted 100 x 75mm (230mm Offset), Eared | XRS4344 + ears |
| Black Painted 100 x 75mm (305mm Offset), Un-Eared | XRS4345 |
| Black Painted 100 x 75mm (305mm Offset), Eared | XRS4345 + ears |
| Black Painted 100 x 75mm (380mm Offset), Un-Eared | XRS4346 |
| Black Painted 100 x 75mm (380mm Offset), Eared | XRS4346 + ears |
| Black Painted 100 x 75mm (457mm Offset), Un-Eared | XRS4347 |
| Black Painted 100 x 75mm (457mm Offset), Eared | XRS4347 + ears |
| Black Painted 100 x 75mm (533mm Offset), Un-Eared | XRS4348 |
| Black Painted 100 x 75mm (533mm Offset), Eared | XRS4348 + ears |
| Black Painted 100 x 75mm (610mm Offset), Un-Eared | XRS4349 |
| Black Painted 100 x 75mm (610mm Offset), Eared | XRS4349 + ears |
| Black Painted 125 x 70mm (56mm Offset), Un-Eared | XRS5340 |
| Black Painted 125 x 70mm (56mm Offset), Eared | XRS5340 + ears |
| Black Painted 125 x 70mm (75mm Offset), Un-Eared | XRS5341 |
| Black Painted 125 x 70mm (75mm Offset), Eared | XRS5341 + ears |
| Black Painted 125 x 70mm (115mm Offset), Un-Eared | XRS5342 |
| Black Painted 125 x 70mm (115mm Offset), Eared | XRS5342 + ears |
| Black Painted 125 x 70mm (150mm Offset), Un-Eared | XRS5343 |
| Black Painted 125 x 70mm (150mm Offset), Eared | XRS5343 + ears |
| Black Painted 125 x 70mm (230mm Offset), Un-Eared | XRS5344 |
| Black Painted 125 x 70mm (230mm Offset), Eared | XRS5344 + ears |
| Black Painted 125 x 70mm (305mm Offset), Un-Eared | XRS5345 |
| Black Painted 125 x 70mm (305mm Offset), Eared | XRS5345 + ears |
| Black Painted 125 x 70mm (380mm Offset), Un-Eared | XRS5346 |
| Black Painted 125 x 70mm (380mm Offset), Eared | XRS5346 + ears |
| Black Painted 125 x 70mm (457mm Offset), Un-Eared | XRS5347 |
| Black Painted 125 x 70mm (457mm Offset), Eared | XRS5347 + ears |
| Black Painted 125 x 70mm (533mm Offset), Un-Eared | XRS5348 |
| Black Painted 125 x 70mm (533mm Offset), Eared | XRS5348 + ears |
| Black Painted 125 x 70mm (610mm Offset), Un-Eared | XRS5349 |
| Black Painted 125 x 70mm (610mm Offset), Eared | XRS5349 + ears |
| Black Painted 125 x 100mm (56mm Offset), Un-Eared | XRS5440 |
| Black Painted 125 x 100mm (56mm Offset), Eared | XRS5440 + ears |
| Black Painted 125 x 100mm (75mm Offset), Un-Eared | XRS5441 |
| Black Painted 125 x 100mm (75mm Offset), Eared | XRS5441 + ears |
| Black Painted 125 x 100mm (115mm Offset), Un-Eared | XRS5442 |
| Black Painted 125 x 100mm (115mm Offset), Eared | XRS5442 + ears |
| Black Painted 125 x 100mm (150mm Offset), Un-Eared | XRS5443 |
| Black Painted 125 x 100mm (150mm Offset), Eared | XRS5443 + ears |
| Black Painted 125 x 100mm (230mm Offset), Un-Eared | XRS5444 |
| Black Painted 125 x 100mm (230mm Offset), Eared | XRS5444 + ears |
| Black Painted 125 x 100mm (305mm Offset), Un-Eared | XRS5445 |
| Black Painted 125 x 100mm (305mm Offset), Eared | XRS5445 + ears |
| Black Painted 125 x 100mm (380mm Offset), Un-Eared | XRS5446 |
| Black Painted 125 x 100mm (380mm Offset), Eared | XRS5446 + ears |
| Black Painted 125 x 100mm (457mm Offset), Un-Eared | XRS5447 |
| Black Painted 125 x 100mm (457mm Offset), Eared | XRS5447 + ears |
| Black Painted 125 x 100mm (533mm Offset), Un-Eared | XRS5448 |
| Black Painted 125 x 100mm (533mm Offset), Eared | XRS5448 + ears |
| Black Painted 125 x 100mm (610mm Offset), Un-Eared | XRS5449 |
| Black Painted 125 x 100mm (610mm Offset), Eared | XRS5449 + ears |
| Black Painted 150 x 100mm (56mm Offset), Un-Eared | XRS6440 |
| Black Painted 150 x 100mm (56mm Offset), Eared | XRS6440 + ears |
| Black Painted 150 x 100mm (75mm Offset), Un-Eared | XRS6441 |
| Black Painted 150 x 100mm (75mm Offset), Eared | XRS6441 + ears |
| Black Painted 150 x 100mm (115mm Offset), Un-Eared | XRS6442 |
| Black Painted 150 x 100mm (115mm Offset), Eared | XRS6442 + ears |
| Black Painted 150 x 100mm (150mm Offset), Un-Eared | XRS6443 |
| Black Painted 150 x 100mm (150mm Offset), Eared | XRS6443 + ears |
| Black Painted 150 x 100mm (230mm Offset), Un-Eared | XRS6444 |
| Black Painted 150 x 100mm (230mm Offset), Eared | XRS6444 + ears |
| Black Painted 150 x 100mm (305mm Offset), Un-Eared | XRS6445 |
| Black Painted 150 x 100mm (305mm Offset), Eared | XRS6445 + ears |
| Black Painted 150 x 100mm (380mm Offset), Un-Eared | XRS6446 |
| Black Painted 150 x 100mm (380mm Offset), Eared | XRS6446 + ears |
| Black Painted 150 x 100mm (457mm Offset), Un-Eared | XRS6447 |
| Black Painted 150 x 100mm (457mm Offset), Eared | XRS6447 + ears |
| Black Painted 150 x 100mm (533mm Offset), Un-Eared | XRS6448 |
| Black Painted 150 x 100mm (533mm Offset), Eared | XRS6448 + ears |
| Black Painted 150 x 100mm (610mm Offset), Un-Eared | XRS6449 |
| Black Painted 150 x 100mm (610mm Offset), Eared | XRS6449 + ears |
Yes. A polished brass finish is historically appropriate for period buildings and is generally acceptable to conservation officers for listed building projects. If you are unsure about the specification requirements for your project, we are happy to advise — call 0333 987 4452.
Prices are shown on each product page. For project quantities, bespoke specifications, or conservation-related queries, please call us on 0333 987 4452 or use the contact form on our website.
The H532 measures 560mm wide x 290mm deep x 305mm high, making it well suited to a broad, low-profile design suited to substantial roofs and box gutters on period commercial and civic buildings.
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.
The opener is designed for use with Lumen Rooflights and compatible timber-framed skylights. The telescopic shaft and adjustable mounting bracket allow it to be fitted to a range of rooflight frames. If you have a specific rooflight model, call us on 0333 987 4452 to confirm compatibility.
Available in two sizes: 225mm x 82mm (single airbrick course height) and 225mm x 150mm (double course height). Both sizes fit standard brick coursing positions and install flush into the wall face.
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.
Prices are shown on each product page. For project quantities, specification advice, or a formal quotation, please call 0333 987 4452 or use the contact form.
Yes. Cast iron airbricks are the appropriate material for listed buildings and conservation area properties where the original ventilation grilles were cast iron. They maintain the character and material authenticity required by most conservation officers and listed building consent conditions. We recommend confirming the specific pattern with your conservation officer before ordering.
Traditional Express can be painted, including in our linseed oil finish. LCC is supplied with a black bitumen coating, which cannot be reliably overpainted with conventional paints; maintain it with a compatible bituminous paint. Where a painted soil stack is required, specify Traditional Express.
