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      • × RD ROTOK 4200 H - 141199 - Rain cover - RuckRD ROTOK 4200 H - 141199 - Rain cover - Ruck 1 × £317.20
      • × MTP 30 - 143289 - 3 - step potentiometer 10 kO - RuckMTP 30 - 143289 - 3 - step potentiometer 10 kO - Ruck 1 × £78.00
      • × SDT-140B - StrutFast Trunking - 140x90 2M Black - StrutFootSDT-140B - StrutFast Trunking - 140x90 2M Black - StrutFoot 1 × £59.00
      • × RSD 355/800 - Helios - Flanged Circular AttenuatorRSD 355/800 - Helios - Flanged Circular Attenuator 1 × £394.90
      • × RSD 500/1200 - Helios - Flanged Circular AttenuatorRSD 500/1200 - Helios - Flanged Circular Attenuator 1 × £566.03
      • × RSD 450/1200 - Helios - Flanged Circular AttenuatorRSD 450/1200 - Helios - Flanged Circular Attenuator 1 × £883.05
      • × SWC35/40 - Wall Cowl - EltaSWC35/40 - Wall Cowl - Elta 1 × £146.00
      • × ELS-GUBR -Flush mounted casing - HeliosELS-GUBR -Flush mounted casing - Helios 1 × £86.52
      • × RSD 315/1200 - Helios - Flanged Circular AttenuatorRSD 315/1200 - Helios - Flanged Circular Attenuator 1 × £379.54
      • × MTP 20 - 128146 - Potentiometer 10 kO - RuckMTP 20 - 128146 - Potentiometer 10 kO - Ruck 1 × £55.12
      • × WI-140B - 140x90 Black Boxing Glove - StrutFootWI-140B - 140x90 Black Boxing Glove - StrutFoot 1 × £39.00
      • × GB-KW 315/355 - Drain pan - HeliosGB-KW 315/355 - Drain pan - Helios 1 × £73.13
      • × 068-0250-JF2 - 250dia - 600mm Long - Spigot Silencer - Elta068-0250-JF2 - 250dia - 600mm Long - Spigot Silencer - Elta 1 × £80.00
      • × RSD 355/1200 - Helios - Flanged Circular AttenuatorRSD 355/1200 - Helios - Flanged Circular Attenuator 1 × £392.71
      • × 241B-0630-BELL - 630mm - Bell Mouth Inlet - Elta241B-0630-BELL - 630mm - Bell Mouth Inlet - Elta 1 × £214.00
      • × ELS-GU - Flush mounted casing - HeliosELS-GU - Flush mounted casing - Helios 1 × £48.41
      • × SSD 560/630 - Helios - Base AttenuatorSSD 560/630 - Helios - Base Attenuator 1 × £1,575.22
      • × SSD 315 - Helios - Base Attenuator, Hingeable - (with Hinge Mechanism)SSD 315 - Helios - Base Attenuator, Hingeable - (with Hinge Mechanism) 1 × £804.07
      • × 068-0400-1DENPC - 400mm - Flanged Silencer - Elta068-0400-1DENPC - 400mm - Flanged Silencer - Elta 1 × £130.00
      • × RSD 250/900 - Helios - Flanged Circular AttenuatorRSD 250/900 - Helios - Flanged Circular Attenuator 1 × £307.15
      • × FSD 250 - Helios - Flexible Circular AttenuatorFSD 250 - Helios - Flexible Circular Attenuator 1 × £129.44

      Subtotal: £6,758.49

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  • Basket

    • × RD ROTOK 4200 H - 141199 - Rain cover - RuckRD ROTOK 4200 H - 141199 - Rain cover - Ruck 1 × £317.20
    • × MTP 30 - 143289 - 3 - step potentiometer 10 kO - RuckMTP 30 - 143289 - 3 - step potentiometer 10 kO - Ruck 1 × £78.00
    • × SDT-140B - StrutFast Trunking - 140x90 2M Black - StrutFootSDT-140B - StrutFast Trunking - 140x90 2M Black - StrutFoot 1 × £59.00
    • × RSD 355/800 - Helios - Flanged Circular AttenuatorRSD 355/800 - Helios - Flanged Circular Attenuator 1 × £394.90
    • × RSD 500/1200 - Helios - Flanged Circular AttenuatorRSD 500/1200 - Helios - Flanged Circular Attenuator 1 × £566.03
    • × RSD 450/1200 - Helios - Flanged Circular AttenuatorRSD 450/1200 - Helios - Flanged Circular Attenuator 1 × £883.05
    • × SWC35/40 - Wall Cowl - EltaSWC35/40 - Wall Cowl - Elta 1 × £146.00
    • × ELS-GUBR -Flush mounted casing - HeliosELS-GUBR -Flush mounted casing - Helios 1 × £86.52
    • × RSD 315/1200 - Helios - Flanged Circular AttenuatorRSD 315/1200 - Helios - Flanged Circular Attenuator 1 × £379.54
    • × MTP 20 - 128146 - Potentiometer 10 kO - RuckMTP 20 - 128146 - Potentiometer 10 kO - Ruck 1 × £55.12
    • × WI-140B - 140x90 Black Boxing Glove - StrutFootWI-140B - 140x90 Black Boxing Glove - StrutFoot 1 × £39.00
    • × GB-KW 315/355 - Drain pan - HeliosGB-KW 315/355 - Drain pan - Helios 1 × £73.13
    • × 068-0250-JF2 - 250dia - 600mm Long - Spigot Silencer - Elta068-0250-JF2 - 250dia - 600mm Long - Spigot Silencer - Elta 1 × £80.00
    • × RSD 355/1200 - Helios - Flanged Circular AttenuatorRSD 355/1200 - Helios - Flanged Circular Attenuator 1 × £392.71
    • × 241B-0630-BELL - 630mm - Bell Mouth Inlet - Elta241B-0630-BELL - 630mm - Bell Mouth Inlet - Elta 1 × £214.00
    • × ELS-GU - Flush mounted casing - HeliosELS-GU - Flush mounted casing - Helios 1 × £48.41
    • × SSD 560/630 - Helios - Base AttenuatorSSD 560/630 - Helios - Base Attenuator 1 × £1,575.22
    • × SSD 315 - Helios - Base Attenuator, Hingeable - (with Hinge Mechanism)SSD 315 - Helios - Base Attenuator, Hingeable - (with Hinge Mechanism) 1 × £804.07
    • × 068-0400-1DENPC - 400mm - Flanged Silencer - Elta068-0400-1DENPC - 400mm - Flanged Silencer - Elta 1 × £130.00
    • × RSD 250/900 - Helios - Flanged Circular AttenuatorRSD 250/900 - Helios - Flanged Circular Attenuator 1 × £307.15
    • × FSD 250 - Helios - Flexible Circular AttenuatorFSD 250 - Helios - Flexible Circular Attenuator 1 × £129.44

    Subtotal: £6,758.49

    View basketCheckout

  • Home
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      • Heat Recovery & Wholehouse Units
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MF 100 - Mounting flange - Helios
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MF 100 – Mounting flange – Helios

£24.72 ex. VAT
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MF 90 - Mounting flange - Helios
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MF 90 – Mounting flange – Helios

£24.72 ex. VAT
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MBR 90/160/300 - Mounting panel - Helios
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MBR 90/160/300 – Mounting panel – Helios

£28.84 ex. VAT
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LTK 40 - Temperature sensor - Helios
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LTK 40 – Temperature sensor – Helios

£53.56 ex. VAT
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LGF 10 - Air velocity sensor - Helios
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LGF 10 – Air velocity sensor – Helios

£403.76 ex. VAT
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LDF 500 - air pressure differential sensor - Helios
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LDF 500 – air pressure differential sensor – Helios

£271.92 ex. VAT
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KWL YOGA-WH - Yoga wall bracket - Helios
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KWL YOGA-WH – Yoga wall bracket – Helios

£87.55 ex. VAT
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KWL-KS - Ball-tube siphon - Helios
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KWL-KS – Ball-tube siphon – Helios

£60.77 ex. VAT
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KWL-MZB-VSAP - Connection set - Helios
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KWL-MZB-VSAP – Connection set – Helios

£97.85 ex. VAT
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KWL-MZB-VOC-F - Combi sensor - Helios
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KWL-MZB-VOC-F – Combi sensor – Helios

£234.84 ex. VAT
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KWL-MZB-RH7 - Pipe support - Helios
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KWL-MZB-RH7 – Pipe support – Helios

£85.49 ex. VAT
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KWL-MZB-RH13 - Pipe support - Helios
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KWL-MZB-RH13 – Pipe support – Helios

£85.49 ex. VAT
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KWL-MZB-F - Humidity sensor - Helios
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KWL-MZB-F – Humidity sensor – Helios

£72.10 ex. VAT
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Helios KWL-MZB 6+1-75/125 R90 - KWL® MultiZoneBox - Helios
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Helios KWL-MZB 6+1-75/125 R90 – KWL® MultiZoneBox – Helios

£1,482.17 ex. VAT
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KWL-MZB 6+1-75/125 L90 - KWL® MultiZoneBox - Helios
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KWL-MZB 6+1-75/125 L90 – KWL® MultiZoneBox – Helios

£1,482.17 ex. VAT
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KWL-MZB 125/125 - KWL MultiZoneBox - Helios
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KWL-MZB 125/125 – KWL MultiZoneBox – Helios

£1,453.33 ex. VAT
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KWL-MZB 6+1-75/125 - KWL MultiZoneBox - Helios
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KWL-MZB 6+1-75/125 – KWL MultiZoneBox – Helios

£1,482.17 ex. VAT
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KWL-RS-KWL Cleaning set - Helios
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KWL-RS-KWL Cleaning set – Helios

£467.62 ex. VAT
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KWL-WF - Replacement water filter - Helios
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KWL-WF – Replacement water filter – Helios

£33.99 ex. VAT
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KWL-UVR - Replacement UVC ducts - Helios
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KWL-UVR – Replacement UVC ducts – Helios

£69.01 ex. VAT
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KWL-OME - Replacement osmosis membrane - Helios
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KWL-OME – Replacement osmosis membrane – Helios

£88.58 ex. VAT
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Helios KWL-SL eC 10m - Control line cable - Helios
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Helios KWL-SL eC 10m – Control line cable – Helios

£42.23 ex. VAT
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Helios KWL-SL eC 5m - Control line cable - Helios
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Helios KWL-SL eC 5m – Control line cable – Helios

£33.99 ex. VAT
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Helios KWL-SL 6/20 - Control cable - Helios
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Helios KWL-SL 6/20 – Control cable – Helios

£45.32 ex. VAT
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Helios KWL-SL 6/10 - Control cable - Helios
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Helios KWL-SL 6/10 – Control cable – Helios

£40.17 ex. VAT
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Helios KWL-SL 6/5 - Control cable - Helios
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Helios KWL-SL 6/5 – Control cable – Helios

£44.29 ex. VAT
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Helios KWL-SL 6/3 - Control cable - Helios
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Helios KWL-SL 6/3 – Control cable – Helios

£28.84 ex. VAT
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Helios KWL-SL 4/20 - Control cable - Helios
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Helios KWL-SL 4/20 – Control cable – Helios

£45.32 ex. VAT
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Helios KWL-SL 4/10 - Control cable - Helios
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Helios KWL-SL 4/10 – Control cable – Helios

£39.14 ex. VAT
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Helios KWL-SL 4/5 - Control cable - Helios
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Helios KWL-SL 4/5 – Control cable – Helios

£31.93 ex. VAT
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Helios KWL-SL 4/3 - Control cable - Helios
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Helios KWL-SL 4/3 – Control cable – Helios

£28.84 ex. VAT
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KWL-SB 2600 S - Base cover - Helios
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KWL-SB 2600 S – Base cover – Helios

£118.45 ex. VAT
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KWL-SB 1200 S - Base cover - Helios
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KWL-SB 1200 S – Base cover – Helios

£86.52 ex. VAT
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KWL-SB 800 S - Base cover - Helios
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KWL-SB 800 S – Base cover – Helios

£77.25 ex. VAT
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KWL-LTK eC - Air temperature duct sensor - Helios
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KWL-LTK eC – Air temperature duct sensor – Helios

£40.17 ex. VAT
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KWL-LTK - Air temperature sensor - Helios
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KWL-LTK – Air temperature sensor – Helios

£40.17 ex. VAT
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Ventilation Experts is the online shop powered by L&B Ventilation Supplies Ltd. We are an independent distributor and stockist to the Heating, Ventilation & Air conditioning (HVAC) industry. 

Popular Products
  • Bathroom / Kitchen Extractor Fans
  • Utility Room Fans
  • Window & Wall fans
  • Plate Axial Fans
  • Cased Axial Fans
  • Bifurcated Axial Flow Fans
  • Box Fans
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Norwich Branch:

4 Albertine Close,

Sweet Briar Industrial Estate,

Norwich NR3 2FA

 

Chelmsford Branch:

Unit 3 Grafton Place,

Dukes Park Ind Est,

Chelmsford, CM2 6TG

 

Monday to Friday 6:00am – 5:00pm

 

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© Ventilation Experts 2025. Ventilation Experts is a trading name of L&B Ventilation Supplies Ltd. Online prices are for a limited time only, and subject to change see our full Terms & Conditions. Registered in England and Wales No. 10679544. Unit 4 Albertine Close, Sweet Briar Industrial Estate, Norwich, Norfolk, NR3 2FA. Website by JMJ Digital
  • Home
  • Domestic Fans
    • Bathroom / Kitchen Extractor Fans
    • Centrifugal Inline Fans
      • Heat Recovery & Wholehouse Units
    • Fan Inserts
    • Mixed Flow Inline Fans
    • Utility Room Fans
    • Window & Wall fans
  • Commercial Fans
    • Box Fans
    • Bifurcated Axial Flow Fans
    • Cased Axial Fans
    • Gigabox Centrifugal Fans
    • Heater Batteries
    • Medium Pressure Fans
    • Plate Axial Fans
    • Roof Mounted Fans
    • Rectangular Duct Fans
    • Twin Fans
  • Controllers & Accessories
    • Ancillary Kits
    • Anti Vibrations Mounts
    • Backdraft Shutters & Dampers
    • Controllers
    • Fan Guards
    • Filter Boxes & Media
  • Controllers & Accessories Cont.
    • Flanges
    • Flexible Connectors
    • Louvre Shutters
    • Mounting Feet
    • Other Accessories
    • Roof Fan Accessories
    • Silencers
    • Valves, Grilles & Louvres
  • Clearance Fans & Fan Accessories
  • Contact Us
  • Support
    • Useful Info
    • Credit Account Application
  • Login

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