Best Reducers Deals Online in the UK (24 Deals Found)

Last Updated - 23/09/2026 Sort By:

Best Choice
Amentalove

New
Amentalove Round Ducting Reducer 150mm to 100mm mit Stainless Hose Clips, Reducer for Extractor Bonnet, 6 to 4 inch Duct
✅【ABS Ducting Reducer Set】You will receive 1 pcs round ducting reducer 150mm to 100mm, 2 pcs metal hose joining clips( 8

£7.99 £9.99
Best Value
US PRO

New
US PRO Tools 4 Piece Impact Adaptor Set 1/4" 3/8" 1/2" Step up/Down Reducer 3504
1/2" F x 3/8" M

£5.28
New
Flexible Rubber Pipe Reducers
Galvanised Pipe Fittings.

£9.80
Vin Beauty

New
Vin beauty E27 to E14 Lampshade Reducer Ring, 2 Pack Lamp Shade Adapter Rings Light Ring Converter Washer Plastic Replac
Vin beauty E27 to E14 Lampshade Reducer Ring, 2 Pack Lamp Shade Adapter Rings Light Ring Converter Washer Plastic Replac

£2.99
New
PIPE REDUCERS 15MM TO 8MM TO FIT RADIATORS AND TOWEL RAILS
The valve reducers will fit any 15mm valve and suitable for use with both copper and plastic pipework.

£8.65
Draymora

New
2" x 1.5" Flexible Reducer Rubber Coupling with Hose Clamps Reducing
UNIVERSAL REDUCER FOR MULTIPLE APPLICATIONS - This flexible rubber coupling adapts a 2-inch (50-63mm) pipe/fitting down

£11.98
SHUNYINLAI

New
4 PCS E27 to E14 Lampshade Reducer Ring,White Lamp Screw Collar Ring 28MM
Usage: This product is suitable for E27 lampshades and can convert E27 interfaces to E14 interfaces. Each package contai

£2.99
New
Tm61602 Tm68602 Electric Proportional Pressure Reducing Solenoid Valve 12V32Bar

£139.99
Chuangdi

New
2 Pieces Metal Lamp Shade Reducer Ring for ES/E27 to BC/B22 Plate Light Fitting Lampshade Washer Adaptor Converter (Whit
Note: please pay attention to measuring the size of your bulbs' round head and select the right type of reducer ring; Di

£4.59
New
100mm To 40mm OD DUST EXTRACTOR REDUCER REDUCING COUPLING TAPERED CONE
3D printed Extractor Hose Reducers.

£10.00
30% Off
VENTS

New
Vents 125mm to 100mm Round Ducting Reducer
Simple push-fit installation – Connects 125mm ducting to 100mm ducting quickly and securely, ideal for adapting duct siz

£6.29 £8.99
ProfessorPrints

New
Round Ducting Reducer 150mm to 100mm - 6 to 4 inch Duct Pipe Reduction Coupler for Extractor Fans, Cooker Hood Tumble Dr
EASY TO INSTALL: Adaptor to convert between 150mm and 100mm ducting - 6 to 4 inch.This is a very practical robust solid

£7.49
New
Metric & BSP & NPT Male to Female Reducing Adaptor Connector 304 Stainless Steel
Material: 304 Stainless Steel.

£46.49 £48.94
Yicenmy

New
2 Ducting Reducer, Ø 80 100 110 120 150 160 mm, for Ventilation Ducts
VERSATILE DIAMETER CONVERSION : The round exhaust air hose adapters can easily convert the pipe diameter from 80 mm to 1

£9.99
New
Hydrant Key Reducer
Adjustable Cast Iron Hydrant Key Reducer Insert for Standard Hydrant Key Head.

£44.98
10% Off
Hon&Guan

New
Hon&Guan Ducting Reducer 150mm to 100mm, Hose Pipe Connector Adaptor, Round
The pipe adapters can be converted between 150 mm and 100 mm ducting (6 to 4 inches).

£8.09 £8.99
New
90° Universal Silicone Hose Elbow Reducer Big to Small Turbo Intercooler Pipe UK
Available in black or red to coordinate with different engine-bay and pipework layouts.

£13.89
New
BSPP Adapter Kit 32pcs Assorted 1/4 3/8 1/2 Reducers 1/4 to 3/8 3/8 to 1/2 Set
5 × 1/4” to 3/8” BSPP reducers.

£35.00
New
Titanium Cone Reducers Adapter Exhaust Tube Reduction Air Intake- All sizes
Titanium Concentric Cone.

£24.99
New
40 x Geberit 61256 Mapress T Piece Press Fit Reducer 22x22x15mm 2 x 20 Packs
Made of copper this Geberit Mapress t-piece reducer 22 - 15mmØ, incorporates easy to use press-fit connections.

£119.99
New
100mm To 38mm OD DUST EXTRACTOR REDUCER REDUCING COUPLING TAPERED CONE
3D printed Extractor Hose Reducers.

£10.00
New
PVC Imperial Grey Pond Fittings Solvent Weld Koi Ponds 4 inch to 2 inch reducer
4 inch to 2 inch reducer grey pvc.

£10.80
New
Brass Reducer BSP Female to Male Thread Reducing Adapter 1/8" 1/4" 3/8" 1/2" 1"
Brass Reducer BSP 1/8" 1/4" 3/8" 1/2" 1" Female to Male Thread Reducing Adapter.Specifications Application: Plumbing Acc

£47.87 £50.39
New
1/8" 1/4" 3/8" 1/2" 3/4" 1" 2" 3" 4" BSP NPT Female Reducer 201 304 Stainless St
Thread:1/4" 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 4" BSPT NPT Female Reudcer Elbow.

£123.99

24 Reducers deals are available from: Amazon, eBay stores, starting from £2.99.
The biggest discount we found is 30% on Vents 125mm to 100mm Round Ducting Reducer at Amazon.
The lowest price we found is £2.99 while the highest is £139.99.
Prices for the best Reducers deals average at £29.75.
Last updated on September 23, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Reducers.