Manrose 40270 110mm x 54mm Flat Channel Connector with Internal Damper

Model No. 40270 by: Manrose
Availability: Usually 3-5 days


List price £6.31
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(over £100+VAT, applies to zones A&B only , £6 +VAT otherwise)
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This is the Manrose 40270 System 100 110mm x 54mm Inline Rectangular Damper.
  • It is a Manrose accessory, a flat channel connector.
  • It comes with internal damper
  • Dimensions: 110mm x 54mm - with Damper
  • External dimensions: 60mm height, 115mm width, 75mm depth
  • Size: 100mm/4inch
  • It is a low profile ducting from Manrose
  • Model number: Manrose 40270
  • Resistance (Pa) at flow rate: 16 at 8l/s, 17.5 at 13l/s, 19.5 at 21l/s, 22 at 29l/s, 25.5 at 37l/s, 36 at 53l/s, 42 at 61l/s. 

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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.