Skip to main content

Filter by

Sort by
Delivery
Price (£)
Reviews
Brands
Material
Connection configuration
Pipe thread size
Maximum operating temperature (°C)

Duct reducers

111 products
Pipe Clamp Circular-H 100AWENTA
#1 in sales

Pipe Clamp Circular-H 100

1
Reducer RM Zn NW 200/150 (1/2)Reducer RM Zn NW 200/150 (2/2)
VENTS

Reducer RM Zn NW 200/150

6
Reducer RM Zn NW 150/100 (1/2)Reducer RM Zn NW 150/100 (2/2)
VENTS

Reducer RM Zn NW 150/100

8
Reducer RM Zn NW 120/100 (1/2)Reducer RM Zn NW 120/100 (2/2)
VENTS

Reducer RM Zn NW 120/100

2
Free shipping
Reducer RM Zn NW 250/200 (1/2)Reducer RM Zn NW 250/200 (2/2)
VENTS

Reducer RM Zn NW 250/200

1
Free shipping
Conduit Reducer, Round Conduit Adapter, 8 to 6 Inch (1/5)Conduit Reducer, Round Conduit Adapter, 8 to 6 Inch (2/5)Conduit Reducer, Round Conduit Adapter, 8 to 6 Inch (3/5)Conduit Reducer, Round Conduit Adapter, 8 to 6 Inch (4/5)Conduit Reducer, Round Conduit Adapter, 8 to 6 Inch (5/5)

Conduit Reducer, Round Conduit Adapter, 8 to 6 Inch

Free shipping
Set of Steel Sheet Pipe Clamp CA-FU ND 150VORTICE
7 options

Set of Steel Sheet Pipe Clamp CA-FU ND 150

Reducer RM Zn NW 315/250 (1/2)Reducer RM Zn NW 315/250 (2/2)
VENTS

Reducer RM Zn NW 315/250

CasaFan Fitting piece Sleeve Pipe Collar in various sizesCASAFAN
8 options

CasaFan Fitting piece Sleeve Pipe Collar in various sizes

Free shipping
Vario Connection flange in various sizesVORTICE
3 options

Vario Connection flange in various sizes

Free shipping
Reducer RM Zn NW 160/125 (1/2)Reducer RM Zn NW 160/125 (2/2)
VENTS

Reducer RM Zn NW 160/125

2
Free shipping
CasaFan RED Reducer in various sizesCASAFAN
16 options

CasaFan RED Reducer in various sizes

Free shipping
ED Fitting piece Cap Faceplate Cover in various sizesCASAFAN
8 options

ED Fitting piece Cap Faceplate Cover in various sizes

Free shipping
Absorbing Duct CSS 125CASAFAN
7 options

Absorbing Duct CSS 125

Free shipping
Heating duct adapter 60 mm to 75 mm (1/4)Heating duct adapter 60 mm to 75 mm (2/4)Heating duct adapter 60 mm to 75 mm (3/4)Heating duct adapter 60 mm to 75 mm (4/4)

Heating duct adapter 60 mm to 75 mm

£32.53
Free shipping
Heating duct adapter 60 mm to 75 mm (1/4)Heating duct adapter 60 mm to 75 mm (2/4)Heating duct adapter 60 mm to 75 mm (3/4)Heating duct adapter 60 mm to 75 mm (4/4)

Heating duct adapter 60 mm to 75 mm

£32.53
Free shipping
The DIY, home and garden specialist

The DIY, home and garden specialist

Reliable delivery

Reliable delivery

Flexible payment options

Flexible payment options

More than 7 million individual and professional customers

More than 7 million individual and professional customers