Skip to content
Tuscan Foundry Products Logo Black
Find out more about our products by giving us a call
0333 987 4452
Linkedin Envelope
  • About Us
  • Buildings
    • Churches
    • Industrial
    • Residential
  • Products
  • Support
  • Index
  • Contact
  • News & Articles
  • About Us
  • Buildings
    • Churches
    • Industrial
    • Residential
  • Products
  • Support
  • Index
  • Contact
  • News & Articles
£0.00 0 Basket
Tuscan Foundry Products Logo Black
  • About Us
  • Buildings
    • Churches
    • Industrial
    • Residential
  • Products
  • Support
  • Index
  • Contact
  • News & Articles
  • About Us
  • Buildings
    • Churches
    • Industrial
    • Residential
  • Products
  • Support
  • Index
  • Contact
  • News & Articles
£0.00 0 Basket

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

Shop / Cast Iron Gutters & Pipes / Cast Iron Rectangular Pipes & Fittings / Rectangular Pipe to Round Connector
Rectangular-to-Round-Cast-Iron-Downpipe-Connector
CODE RTCON Category Cast Iron Rectangular Pipes & Fittings

Rectangular Pipe to Round Connector

£160.61 – £240.02Price range: £160.61 through £240.02 +VAT

Clear

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.

Additional information

Size/Finish

Primer 100mm x 75mm, Primer 125mm x 75mm, Primer 125mm x 100mm, Primer 150mm x 100mm

FAQ Categories

  • Cast Iron Airbricks
  • Cast Iron Airvents
  • Cast Iron Hopper Heads
  • Gutter & Pipe Brackets
  • Gutters & Pipes
  • Heating
  • Rooflight Openers
All FAQ
My builder has calculated out our heating requirement in each room of our house in BTU’s. Can you tell me what BTU’s stand for, and is this different to KW.

My builder has calculated out our heating requirement in each room of our house in BTU’s. Can you tell me what BTU’s stand for, and is this different to KW.

BTU stand’s for British Thermal Units. This was the old (Imperial) measurement for heat in connection with plumbing. Although BTU’s is a term still commonly used within the heating and plumbing, the industry is now going over to KW’s Kilowatts.

What building types is the Iron Works Hit & Miss Vent in Antique Black suited to?

What building types is the Iron Works Hit & Miss Vent in Antique Black suited to?

The Antique Black finish suits Victorian, Edwardian, and inter-war buildings where ventilation ironwork was painted rather than polished — estate houses, terrace housing, civic buildings, and rural properties. It is also correct for listed buildings and conservation area properties requiring like-for-like replacement of original ornamental cast iron vents.

Are these rooflight openers suitable for use with Lumen Rooflights?

Are these rooflight openers suitable for use with Lumen Rooflights?

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.

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.

Is a cast iron hopper head suitable for use on a listed building?

Is a cast iron hopper head suitable for use on a listed building?

Yes. Cast iron rainwater goods are widely accepted by conservation officers and historic environment bodies as the appropriate material for listed buildings. Tuscan Foundry's hopper heads are manufactured in solid cast iron to BS 460 specification and are suitable for use on all listed building classes. A linseed oil paint finish is also available, which is particularly appropriate for conservation projects.

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.

Is a brass rooflight opener suitable for use on a listed building?

Is a brass rooflight opener suitable for use on a listed building?

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.

Are ornamental cast iron vents suitable for listed buildings?

Are ornamental cast iron vents suitable for listed buildings?

Yes. Cast iron ornamental vents in period patterns are frequently specified on listed buildings and conservation area properties as like-for-like replacements for original Victorian ironwork. Conservation officers generally accept cast iron in period patterns without objection. We can supply specifications to support planning and listed building consent applications.

What building types is the School Board Airbrick suited to?

What building types is the School Board Airbrick suited to?

The School Board Airbrick suits Victorian and Edwardian institutional, civic, and residential buildings where the square-grid airbrick pattern was standard — including school buildings, civic halls, estate housing, terrace houses, and warehouses. It is also appropriate on listed buildings and conservation area properties as a like-for-like replacement for worn square-grid cast iron vents.

Related products

  • Cast Iron Rectangular Pipe Shoe Side Eared

    Rectangular Pipe Shoe Side Eared

    £340.15 – £527.59Price range: £340.15 through £527.59 +VAT
    Select options This product has multiple variants. The options may be chosen on the product page
  • Cast Iron Rectangular Pipe Shoe Regular Plain

    Rectangular Pipe Shoe Front Plain

    £255.97 – £412.65Price range: £255.97 through £412.65 +VAT
    Select options This product has multiple variants. The options may be chosen on the product page
  • Cast-Iron-Ornamental-Earband-Pattern-C_Rectangular-Downpipe

    Rectangular Ornamental Earband (C)

    £73.88 – £117.47Price range: £73.88 through £117.47 +VAT
    Select options This product has multiple variants. The options may be chosen on the product page
Tuscan Foundry Products Logo White

Working together to make the world a brighter place

NuDawn Logo

CONTACT US

Sales & Customer Services:
0333 987 4452

Tyn-Y-Clyn
Llanafarn Fawr
Builth Wells
Powys LD2 3LU
United Kingdom

FOLLOW US

Twitter

MESSAGE US

ABOUT US
  • About Us
  • News
  • Testimonials
  • Gallery
  • About Us
  • News
  • Testimonials
  • Gallery
PRODUCTS
  • Bespoke Commissions
  • Cast Iron Soil Pipes
  • Cast Iron Gutters & Pipes
  • Heating & Cast Iron Radiators
  • Hardware & Spares
  • Cast Iron Radius Guttering
  • Bespoke Commissions
  • Cast Iron Soil Pipes
  • Cast Iron Gutters & Pipes
  • Heating & Cast Iron Radiators
  • Hardware & Spares
  • Cast Iron Radius Guttering
SUPPORT
  • Brochures
  • Delivery
  • Downloads
  • Surveys & Visits
  • Brochures
  • Delivery
  • Downloads
  • Surveys & Visits
CONTACT
  • Contact
  • Referral Scheme
  • FAQ
  • Privacy Policy
  • Terms And Conditions
  • Contact
  • Referral Scheme
  • FAQ
  • Privacy Policy
  • Terms And Conditions
Tuscan Foundry Products Logo Black
Find out more about our products by giving us a call
0333 987 4452

Tuscan Foundry Products, Tyn-Y-Clyn, Llanafan Fawr, Builth Wells, Powys LD2 3LU, United Kingdom

© Tuscan Foundry Products 2026

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish.AcceptReject Read More
Privacy & Cookies Policy

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Non-necessary
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
SAVE & ACCEPT