I have in stock the Strap ones which clamps to the outside of the pot or the Hook ones which hooks inside the pot(Chimney Pot not included)

The Antidowndraft cowl by Brewer for all fuels and systems

The Ultimate Flue Outlet originally introduced in 1995, was the first gas chimney cowl in the UK to pass the rigorous requirements of BS715:1993 (200mm). Its ever increasing market share is testimony to its extensive benefits and advantages over other cowls.

Now the new U.F.O. Mk II is here! It does all that the original U.F.O. does, but its new adjustable upstand addresses the greater smoke demand of solid fuels(Straped ones only)

What do you get: -

• Fully assembled including factory fitted bird guard.
• Adjusts to fit 150 to 250 mm (6-10") flues and pots.
• Stainless steel high security strap and leg fixing.
• 1.2mm thick quality aluminium alloy, powder coated finish in terracotta colour as standard. 
• Tested and certificated (Certificate No. BG/TR/95/96) to BS 715: 1993 (200mm) and BS EN1856-1:2003
• Suitable for all gas appliances to BS 5871, 1991, Parts 1,2 & 3 - including radiant gas fires, coal and log effect gas fires, vertical flued gas boilers etc.
• Performance tested for use on oil appliances by OFTEC.
• Better rain and bird protection than other cowls.
• Fitted with upstand legs as standard that allow it to be easily converted for use with solid fuel (Straped ones only)