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.
Established 1893 | BS 460:2002 Certified | UK & International Supply | Expert Technical Support | 0333 987 4452
£28.50 +VAT
Wavin Osma Roundline adjustable gutter brackets. Our bespoke top rafter rise and fall gutter bracket is designed to suit the Osma Roundline system and is available with black, white, brown, and grey riser cups. (galvanised thread and arm)
Osma Roundline guttering bracket, adjustable rise, and fall, top rafter
Osma Roundline OT914 Rise and Fall Bow and Pin Bracket
Bespoke made – 10 – 14 days.
Application Similar to Osma OT148G top rafter arm
The OSRL-TRRF is a bespoke top rafter-mounted rise and fall gutter bracket, manufactured to suit the Wavin Osma Roundline half-round PVC guttering system. The top rafter variant is required where the fixing is to be made to the top surface of a rafter — on open eaves, cut roof constructions, or where the roof structure makes top-fixing the most practical option.
The bracket features a right-angled galvanised steel rafter plate for top-surface fixing, combined with a threaded steel riser column and a half-round bow-and-pin gutter cup compatible with the Roundline system. The adjustable riser allows fall to be set at the correct gradient along the run independently of roof pitch. Available in black or grey riser cup options.
Used on open eaves and cut roof constructions with Wavin Osma Roundline guttering, and on refurbishment projects where the existing roof structure dictates the fixing approach. Suitable for residential and light commercial applications.
Manufactured to order in black or grey. Lead time 10–14 working days from order confirmation.
System compatibility: Wavin Osma Roundline half-round PVC guttering system. For specification queries, call 0333 987 4452.
| Colour | Black, White, Brown, Grey |
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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.
All of our cast iron radiators are availbale as standard with a 1/2″ BSP (15mm) connection. We are though also able to supply many of our radiators and valves with 3/4″ BSP connections. Due to the size proportions of some radiators and valves 3/4″ connections may be more suitable.
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.
Prices are shown on the product page. For project quantities, specification support, or a formal quotation, call 0333 987 4452 or use the contact form.
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 standards for our cast iron gutters and pipes have remained remarkably constant for many years. The physical properties of cast iron are sustained throughout its lifetime thus maintaining its effectiveness. Coupled with is durability and proper maintenance, we would expect our traditional cast iron rainwater products to last for over 50 years under normal conditions.
We manufacture a wide variety of brackets for many different cast iron gutter and pipe profiles. More common types are the rise and fall, top fix and side fix rafter and the holderbat or pipe clip.
We can also offer traditional drive brackets, repair brackets and fascia brackets in both steel and cast iron.
It is always advisable to replace like with like because quite often the brackets form and important part of the buildings architecture. Occasionally buildings have special decorative brackets and our UK manufacturing allows us to produce small quantities of bespoke brackets when required.
The Paxton H82 is a large-format hopper with decorative collar mouldings, making it particularly well suited to late Victorian and Edwardian buildings where the rainwater system forms part of the architectural composition. Typical applications include commercial heritage buildings, civic buildings, large detached houses, institutional premises, and warehouse conversions where a more substantial fitting is appropriate.
Prices are shown on the product page. For project quantities, multiple pattern orders, or a formal quotation, call 0333 987 4452 or use the contact form.
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.


