Pipe ends are male and will accept male fittings such as bends and grilles.
Lengths of duct channel can be joined together using a male connector.
Easy to install and durable, just push-fit duct and fittings together.
Compatible with most other manufactures
Extensive range of fittings, outlets, and grilles available
Galvanised male coupling used to join circular ducts
This version is supplied without 'safe' push fit seals
Fittings without safe seals should be joined using appropriate fixing methods
Our fittings are produced in accordance with DW144 with a zinc coating weight of 275g/m2, and have a rolled edge for safer handling and improved alignment
Product Part Number
100-80mm Short Reducer - R10080M
125-100mm Short Reducer - R125100M
150-100mm Short Reducer - R150100M
150-125mm Short Reducer - R150125M
160-100mm Short Reducer - R160100M
160-125mm Short Reducer - R160125R
160-150mm Short Reducer - R160150M
180-125mm Short Reducer - R180125M
180-150mm Short Reducer - R180150M
180-160mm Short Reducer - R180160M
200-100mm Short Reducer - R200100M
200-125mm Short Reducer - R200125M
200-150mm Short Reducer - R200150M
200-160mm Short Reducer - R200160M
200-180mm Short Reducer - R200180M
250-150mm Short Reducer - R250150M
250-180mm Short Reducer - RC250180
250-200mm Short Reducer - R250200M
Metal reducers are constructed of high quality durable galvanised metal
Manufactured without seals
Male spigots, these metal reducers will fit inside round metal ducting.
Made in the UK
Perfectly suited for ducting your ventilation system, kitchen extractor fan, bathroom fan or in-line extract fans
Can be used to connect long ductwork run for a variety of purposes including whole house ventilation, passive stack vent, positive input, air conditioning, HVAC, and heat recovery systems.
Compatible with most other lead manufacturers for galvanised metal ducting
Solid rigid ducting is suitable for use in all buildings to provide superior airflow performance vs. comparative size rectangular or flexible PVC or aluminium duct. Suitable to use in compliance with Part F Building Regulations.
To provide the best performance in airtightness and durability we recommend you provide greater mechanical strength to a joint by using a combination of plastic ducting sealant and aluminium duct sealing tape
Apply duct sealant to the male fitting
Apply aluminium duct sealing tape over joint
Alternatively, you can use self-sealing fittings that speed up the time taken by up to 70% and can be easily dismantled
Insulation of Ductwork
It is important that any ducting located in a cold area (e.g. loft space) to be insulated. The insulation needs to be the equivalent of 25mm thick and have a thermal conductivity of 0.04W/(m.k) or less.
This ensures that condensation doesn’t form due to the difference in air temperature inside the duct when compared to the air temperature in the cold space.
If you don’t have a loft space there is still a need for insulated ducting on the intake and exhaust legs, as they will be carrying cold air in a warm space. The level of insulation can be achieved by wrapping duct in a layer of 25mm duct wrap that has a silver foil face on a 25mm rockwool
It is also worth noting that foil wrap with air bubbles (bubble wrap) is no longer applicable in building control regulations.
Metal Reducers Technical Specification
Temp Max (°C)
EAN - Barcode
BPC have years of experience in delivering equipment around the UK and other Worldwide destinations. Our dedicated dispatch team work hard to ensure the highest standards are met so that your goods arrive on-time and in pristine condition.
Our market knowledge and experience allow us to match our service to meet your requirements swiftly and safely.
We offer free delivery on any order over £100 to any mainland UK or Ireland address
Worldwide delivery is possible on almost all our products at low costs, delivery to countries outside the EU are normally delivered to the nearest customs office, port or terminal for the purchaser to collect and complete custom clearance.
Please contact us to confirm shipping cost and availability.
End-To-End Support Delivery is available within 48-72 hrs, depending on method of transport, for hundreds of stock items.
Customers receiving a pallet delivery will be emailed on day of dispatch advising of delivery date. Parcel deliveries will be notified via email or SMS directly from DPD.
These checks are part of a unique commitment to building relationships with customers, understanding their specific delivery needs and responding to them positively and promptly.
We deliver on Service
Key components such as ductwork and fittings plus the most popular selling MVHR units are kept in stock in our UK-based warehouse, which means that you receive the best possible delivery dates.
All goods are expertly packed by a professional team so that your equipment is received in pristine condition ready for installation.
All deliveries co-ordinated to suit your specific requirements and construction programme.
We only use the couriers with the highest standard of service that include