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FREE NEXT DAY DELIVERY for orders over £50*, *T&Cs apply

Airvent 4 inch Slimline Extractor Fan With Humidistat

Web Price (inc. VAT) £29.99

Part Number: 437675

Quantity Qty

For Trade Discounts, please contact us.


Description Full Description

Slim 16W axial extract fan with backdraught shutter and humidistat control adjustable from 65% to 90% relative humidity. The factory setting is 75%RH. The fan suitable for panel mounting or wall mounting using the appropriate accessory kit.

Key Features

  • Slim – only 15mm thick
  • Wall or ceiling mountable
  • HIgh quality ABS Mouldings
  • White gloss external finish
  • Quiet Operation - 37.3dBA @ 3M

Technical Spec

  • Airflow: 90M³/hr
  • Hole diameter: Ø115mm
  • Meets the installed performance requirements of Building Regulations Document F
  • IP44, BEAB approved and CE marked in accordance with all relevant EEC Harmonised Directives
  • Double insulated class II motor fitted with thermal protection
  • Rated Voltage: 220-240v-50Hz
  • Dimensions: H: 159mm | W: 159mm | D: 78mm Spigot


  • Wall Kit
  • External wall grille
  • External gravity grille
  • Ducting

Delivery - Despatch
Orders placed on Monday to Friday before 15:00 will be picked and packed for despatch on the next available working day where items are in stock (So far this year 96% of our orders have been despatched the same working day).

Orders placed over the weekend or on public holidays will be processed on the next working day (although we can often arrange Saturday and special late despatches - just give us a call).

Delivery - Costs
Orders over £50 (Inc VAT) warrant a free delivery.

 1-2 Working days

  2-3 Working days

  3-5 Working Days

          England, Wales 
       Southern Scotland
 Southern & Northern Ireland
       Scottish Highlands
 Channel Islands, Isle of Man
       UK Offshore Islands




Orders over £50 (Inc VAT) FREE

Orders over £180 (Inc VAT) FREE

Orders over £210 (Inc VAT) FREE

Our delivery methods are:

UK Royal Mail - standard delivery @ £5.99
Orders will be despatched via Royal Mail 1st Class. The parcel will not be tracked and does not require a signature at the time of delivery. Usually takes 1-2 days for delivery.

Next (Working) Day Delivery 
This option can be selected on products marked 'Available for Next Day Delivery'. If this option is chosen and the order is completed before 15:00 it will be despatched on the same day and usually delivered within 1-2 working days - providing your item is in stock.

You will receive an email confirming receipt of your order together with a tracking code if coming via DHL  - so you can follow the progress of your order or reschedule delivery.

DHL is the largest express carrier and package delivery company in the UK - so you can be sure your goods are in safe hands. The parcel will require a signature at the time of delivery.

*Free delivery is not available for orders to Northern Ireland. 

We offer a 14 Day cooling off period. If for any reason you are not completely delighted with your purchase you may download a Returns Form and return it within 14 days of receipt for a full refund or exchange (For the same item only).

Delivery costs back to us are not refundable unless there is a fault/damage with the item and it is reported within 28 days of receipt. If that is the case then please contact our sales team on 0330 900 9103.