Aico Firecap Insert for 35mm Double Box to Reinstate Fire, Acoustic, and Air Barrier

Model No. AFB2 by: Aico
Availability: Usually 2 - 3 Days


List price £3.56
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(over £100+VAT, applies to zones A&B only , £6 +VAT otherwise)
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This is the Aico Firecap AFB2 switch and socket insert for a double 35mm back box (metal or plastic) to reinstate fire and sound barriers. It fits inside the switch/socket boxes to reinstate fire, acoustic, and air leakage, thus minimising the heat loss and air leakage into the wall cavity; also, it seals the hole left after installation. 

Please note: there is limited stock of this item - it is available while stock lasts at this reduced price. Please make sure this is the item you're looking for - it is non-returnable as unwanted. For more information on stock, please contact us.

  • Using these inserts (which are easy to install) means you no longer need to use expensive plasterboard lining or putty pads. 
  • Type: Firecap Switch & Socket Insert
  • Function: reinstates fire and sound barriers. It provides a fire, acoustic and air leakage barrier.
  • Fire rating: 2 Hour Fire Rated
  • Installation: it is easy to install – no screws, fixing or assembly required
  • Suitability: it is suitable for metal & plastic boxes
  • Model: AFB2 for twin 35mm back boxes. 

Aico Firecap Socket/Switch Box Inserts have been successfully tested as follows:

  • Fire Testing
    Fire tested to BS EN 1364-1 and to the principles of BS EN 1363-1:1999
    Constructions covered: Plasterboard partition
    Duration of effective protection: 2 hour integrity and insulation
    Test Report no’s. Chilt/RF08071 AR1 & Chilt/|IF08039
  • Acoustic Testing
    Acoustically tested under UKAS conditions at BRE Laboratories in accordance with BS EN ISO 140-3:1995  and BS EN ISO 717-1:1997
    Test Report No: 247-373
  • Air tightness Testing
    Tested to BS EN 1026:2000 over a pressure range of 2-50 Pa
  • Robust Detail Approved
    Permitted for use in Robust Detail Timber and Metal frame walls

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Sparks Direct delivers via courier to the UK only; the standard delivery charge is £6 + VAT for all orders under £100 + VAT. If your order is over £120, you get free delivery (unless there's a special delivery charge for the items you wish to order or you're in shipping zone C or D). Full details for shipping charges can be found via Terms and Conditions.

If the items you order are in stock and the order is placed before 1.00pm, delivery can be made within 1-2 working days. If the items are not in stock, we will inform you via email how long it will take or ask for your confirmation if there's a long lead time.


We offer 30-day returns for unwanted items - please email us to request a returns number which will need to be quoted when the items are returned. For faulty items or items damaged in transit, please advise via email, and an appropriate returns number will be provided. Full details concerning returns and refunds can be found via our Terms and Conditions.