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    1. eBay
    2. Home, Furniture & DIY
    3. Heating, Cooling & Air
    4. Air Quality & Fans
    5. Extractor Fans
    6. 100mm Reducer in Extractor Fans
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    100mm Reducer in Extractor Fans

    Side Refine Panel

    Shop by category

    • Air Quality & Fans
    • Extractor Fans
    • Air Filters
    • Air Purifiers
    • Ceiling Fans
    • Dehumidifiers
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    • Portable Fans
    • Indoor Air Quality & Fan Parts

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    • Brand

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    • Material

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    • Ventilation System

    • Vent Style

    • Condition

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    List view

    1-48 of 143 results

    • Metal Extraction Fan Ducting Ventilation Pipe Reducer Hydroponics

      Metal Extraction Fan Ducting Ventilation Pipe Reducer Hydroponics

      5 out of 5 stars
      (1)1 product ratings - Metal Extraction Fan Ducting Ventilation Pipe Reducer Hydroponics
      £7.99 to £17.49
      Click & Collect
      Free postage
      585 sold
    • Ventilation Pipe Reducer / Adaptor - 125mm to 100mm 5 inch to 4 inch

      Ventilation Pipe Reducer / Adaptor - 125mm to 100mm 5 inch to 4 inch

      £5.50
      Free postage
      428 sold
    • Duct Reducer Extractor Fan Pipe Connector 80mm 100mm 120mm 125mm 150mm

      Duct Reducer Extractor Fan Pipe Connector 80mm 100mm 120mm 125mm 150mm

      4.5 out of 5 stars
      (16)16 product ratings - Duct Reducer Extractor Fan Pipe Connector 80mm 100mm 120mm 125mm 150mm
      £4.69
      £3.49 postage
      1,219 sold
    • Metal Ducting Reducer Ventilation Pipe Connection Extraction Fan Tube Hydroponic

      Metal Ducting Reducer Ventilation Pipe Connection Extraction Fan Tube Hydroponic

      £9.19 to £20.65
      Click & Collect
      Free postage
      119 sold
    • Ducting Pipe Reducer PVC 100mm 110mm 120mm 125mm 150mm Extractor Fan Multistage

      Ducting Pipe Reducer PVC 100mm 110mm 120mm 125mm 150mm Extractor Fan Multistage

      £4.99
      £3.49 postage
      1,617 sold
    • Ventilation Pipe Duct Reducer / Adaptor - 100mm to 80mm

      Ventilation Pipe Duct Reducer / Adaptor - 100mm to 80mm

      4.5 out of 5 stars
      (29)29 product ratings - Ventilation Pipe Duct Reducer / Adaptor - 100mm to 80mm
      £6.50
      Click & Collect
      Free postage
    • Extractor Fan Ducting Pipe Reducer Fan PVC 80 100 125 150 200mm 3" 4" 5" 6" 8"

      Extractor Fan Ducting Pipe Reducer Fan PVC 80 100 125 150 200mm 3" 4" 5" 6" 8"

      £6.99 to £21.99
      Free postage
      682 sold
    • 4" 100mm Duct Fitting Ventilation for Extractor Fan System Bathroom Kitchen ALL

      4" 100mm Duct Fitting Ventilation for Extractor Fan System Bathroom Kitchen ALL

      £5.86 to £556.75
      Free postage
    • 5" x 4" 125mm x 100mm Plastic Reducer, Neck Adapter for Ducting, Extractor Fans

      5" x 4" 125mm x 100mm Plastic Reducer, Neck Adapter for Ducting, Extractor Fans

      £1.95
      £3.99 postage
    • Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm#AX

      Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm#AX

      £7.89
      Free postage
      2 watching
    • Vortice 46415 Plastic Pipe Reducer / Adapter 100mm - 80mm

      Vortice 46415 Plastic Pipe Reducer / Adapter 100mm - 80mm

      £6.25
      Free postage
      39 sold
    • 150-100mm reducer, plastic ducting, extractor fan 6" to 4" flexible duct reducer

      150-100mm reducer, plastic ducting, extractor fan 6" to 4" flexible duct reducer

      £7.49
      Free postage
    • Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm#crz

      Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm#crz

      £7.19
      Free postage
    • 150mm to 100mm Ventilation Pipe Pipeline Circular Vent Ducting Reducer

      150mm to 100mm Ventilation Pipe Pipeline Circular Vent Ducting Reducer

      £10.59
      Free postage
      or Best Offer
    • Domus Rigid Duct In-line Adapter Circular Reducer 125X100mm,150X100mm,150X125mm

      Domus Rigid Duct In-line Adapter Circular Reducer 125X100mm,150X100mm,150X125mm

      £5.99
      Click & Collect
      Free postage
    • Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm B2X

      Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm B2X

      £7.39
      Free postage
      or Best Offer
    • 4" 100mm Galvanised Metal Ducting Ventilation Extractor Fan Bath Kitchen

      4" 100mm Galvanised Metal Ducting Ventilation Extractor Fan Bath Kitchen

      £10.02 to £429.50
      Free postage
    • ABS Ventilation Pipe Reducer Adapter PVC Pipe Connector Fittings 150mm to 100mm

      ABS Ventilation Pipe Reducer Adapter PVC Pipe Connector Fittings 150mm to 100mm

      £6.16
      (£6.16/Unit)
      Free postage
    • Pack of 2 Plastic Duct Pipe Reducer / Adapter Extraction 100mm - 80mm

      Pack of 2 Plastic Duct Pipe Reducer / Adapter Extraction 100mm - 80mm

      £8.49
      Click & Collect
      FAST & FREE
    • Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm#hh

      Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm#hh

      £9.59
      Free postage
    • Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm -UKX

      Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm -UKX

      £7.30
      Free postage
      or Best Offer
    • 150mm to 100mm Ventilation Pipeline Circular Vents Ducting Reducers Adaptor #K1

      150mm to 100mm Ventilation Pipeline Circular Vents Ducting Reducers Adaptor #K1

      £12.19
      Free postage
    • Manrose 54119 / 65118 Circular Reducer 125mm to 100mm or 150mm to 125mm

      Manrose 54119 / 65118 Circular Reducer 125mm to 100mm or 150mm to 125mm

      £4.75 to £4.99
      £3.85 postage
      177 sold
    • Ducting Tube Step Fan Hydroponics Reducer 3" 80mm 4" 100mm 5" 125mm 6" 150mm

      Ducting Tube Step Fan Hydroponics Reducer 3" 80mm 4" 100mm 5" 125mm 6" 150mm

      4 out of 5 stars
      (5)5 product ratings - Ducting Tube Step Fan Hydroponics Reducer 3" 80mm 4" 100mm 5" 125mm 6" 150mm
      £7.49
      Free postage
    • 6" x 4", 150mm x 100mm PLASTIC DUCTING REDUCER, NECK ADAPTER for Extractor Fans

      6" x 4", 150mm x 100mm PLASTIC DUCTING REDUCER, NECK ADAPTER for Extractor Fans

      £2.88
      £3.99 postage
    • 3" 4" 5" 6" 8" 10" 12" Metal Ducting Reducer Hydroponics Extractor Fan Flexible

      3" 4" 5" 6" 8" 10" 12" Metal Ducting Reducer Hydroponics Extractor Fan Flexible

      £8.25 to £19.95
      Click & Collect
      Free postage
    • 4" to 5" Ventilation vent ducting hose reducer adaptor converts 125 mm - 100mm

      4" to 5" Ventilation vent ducting hose reducer adaptor converts 125 mm - 100mm

      £3.95
      Free postage
      190 sold
    • 5"/125mm TO 4"/100mm ROUND PIPE REDUCER VENTILATION DUCTING ADAPTER WHITE

      5"/125mm TO 4"/100mm ROUND PIPE REDUCER VENTILATION DUCTING ADAPTER WHITE

      £5.45
      Click & Collect
      £2.95 postage
    • Ducting Round Domed Plastic Pipe Reducer 4" 100mm (male) to 5" 125mm (female)

      Ducting Round Domed Plastic Pipe Reducer 4" 100mm (male) to 5" 125mm (female)

      £3.39
      £3.50 postage
      179 sold
    • Circular Ducting Adaptor / Reducer 125mm to 100mm (5" to 4")

      Circular Ducting Adaptor / Reducer 125mm to 100mm (5" to 4")

      £8.29
      Click & Collect
      Free postage
      Only 2 left
    • REDUCED: ACEL AC6160 100mm 3 metre Duct

      REDUCED: ACEL AC6160 100mm 3 metre Duct

      £12.50
      Click & Collect
      Free postage
      or Best Offer
    • 125mm to 100mm plastic ducting reducer

      125mm to 100mm plastic ducting reducer

      £12.30
      Click & Collect
      £3.50 postage
    • Eccentric Duct Multi Reducer 80mm 100mm 120mm 125mm 150mm 160mm Multistage

      Eccentric Duct Multi Reducer 80mm 100mm 120mm 125mm 150mm 160mm Multistage

      £4.99
      £3.49 postage
    • AIRFLOW 4"/100mm ROUND TO RECTANGLE 110mmx54mm RIGID GRADUAL REDUCER, BRAND NEW

      AIRFLOW 4"/100mm ROUND TO RECTANGLE 110mmx54mm RIGID GRADUAL REDUCER, BRAND NEW

      £6.99
      Click & Collect
      FAST & FREE
    • 2 x Ventilation Pipe Reducers / Adaptors - 125mm to 100mm 5 inch to 4 inch

      2 x Ventilation Pipe Reducers / Adaptors - 125mm to 100mm 5 inch to 4 inch

      £9.50
      (£4.75/Unit)
      Free postage
      45 sold
    • Extractor Fan Ducting Reducer PVC - 125 - 100mm 5" - 4" Inch

      Extractor Fan Ducting Reducer PVC - 125 - 100mm 5" - 4" Inch

      £4.99
      (£4.99/Unit)
      Free postage
      178 sold
    • ABS Ventilation PVC Pipe Circular Ducting Reducer Adaptor 150mm to 100mm Tool

      ABS Ventilation PVC Pipe Circular Ducting Reducer Adaptor 150mm to 100mm Tool

      £8.03
      (£8.03/Unit)
      Free postage
    • ABS Ventilation PVC Pipe Circular Ducting Reducer Adaptor 150mm to 100mm Parts

      ABS Ventilation PVC Pipe Circular Ducting Reducer Adaptor 150mm to 100mm Parts

      £7.19
      (£7.19/Unit)
      Free postage
    • Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm#soh

      Ventilation Pipe Pipeline Circular Vent Ducting Reducer Adaptor 150mm-100mm#soh

      £9.89
      Free postage
    • 3 x Ventilation Pipe Reducers / Adaptors - 125mm to 100mm 5 inch to 4 inch

      3 x Ventilation Pipe Reducers / Adaptors - 125mm to 100mm 5 inch to 4 inch

      £14.00
      (£4.67/Unit)
      Free postage
    • Tumble Dryer 125mm to 100mm plastic reducers x three

      Tumble Dryer 125mm to 100mm plastic reducers x three

      £12.70
      Click & Collect
      £3.50 postage
    • 4 x Ventilation Pipe Reducers / Adaptors - 125mm to 100mm 5 inch to 4 inch

      4 x Ventilation Pipe Reducers / Adaptors - 125mm to 100mm 5 inch to 4 inch

      £18.00
      (£4.50/Unit)
      Free postage
    • Ventilation PVC Pipe Circular Ducting Reducer Adaptor 100mm-150mm

      Ventilation PVC Pipe Circular Ducting Reducer Adaptor 100mm-150mm

      £6.78
      (£6.78/Unit)
      Free postage
    • 5 x Ventilation Pipe Reducers / Adaptors - 125mm to 100mm 5 inch to 4 inch

      5 x Ventilation Pipe Reducers / Adaptors - 125mm to 100mm 5 inch to 4 inch

      £21.50
      (£4.30/Unit)
      Free postage
    • Blauberg UK RS 150/100 Reducer-6" to 4" (150-100mm) for ducting and Extractor...

      Blauberg UK RS 150/100 Reducer-6" to 4" (150-100mm) for ducting and Extractor...

      £12.94
      Click & Collect
      FAST & FREE
    • Ducting Pipe Reducer 125mm / 100mm Round Tube Reduction Fan Connector KO125-29

      Ducting Pipe Reducer 125mm / 100mm Round Tube Reduction Fan Connector KO125-29

      £6.99
      Click & Collect
      £2.99 postage
      159 sold
    • 150mm to 100mm Ventilation Pipeline Circular Vent Ducting Reducers Adaptor Chic

      150mm to 100mm Ventilation Pipeline Circular Vent Ducting Reducers Adaptor Chic

      £6.47
      Free postage

    Results pagination - page 1

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