6″ ID Security ASHT Flue Extension (6XCA/6CA/6UP/6DTC-CA/6DTP-CA)

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USD $52.63USD $56.55


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Product Description

These are genuine Security Duravent flue extension connectors.  There are two different flue extensions available from the drop down menu.  The 6CA works with chimney that has a 1″ insulated wall (ASHT & Duratech) whereas the 6XCA is certified for chimney with a 2″ insulated wall (Security Secure Temp S2100 & Duratech Premium).

Security Duravent Part Numbers: 

  • 6CA : ASHT & Duratech Chimney that has a 1″ Wall (Sometimes referred to as 6DTC-CA). This replaces old part number 6UP
  • 6XCA: Secure Temp 2100 & Duratech Premium Chimney that has a 2″ Wall.  This replaces old part number 6UP.

Part Description: The flue extension adapts the insulated chimney to either single wall or double wall smoke pipe.  The old part – 6UP – is no longer available and has been replaced by these two parts instead.


These genuine Security Duravent 6UP flue extensions are in stock ready to ship.

Shipping Dimensions

Weight 3 lbs
Dimensions 12 × 12 × 8 in
6CA or 6XCA

6CA (1" Wall Chimney), 6XCA (2" Wall Chimney)


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