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Hi.
I am after fitting some clay blanking cowls (like in the photo of my neighbors chimney stack) but unsure what size to get.
There seems to be 185mm or 205mm (internal dimensions).
Can anyone tell be by looking at the picture which is best suited (I did measure a brick which is 210mm and try to get the dimensions but don't trust my own judgement).
Thanks for any help you can give.
I am after fitting some clay blanking cowls (like in the photo of my neighbors chimney stack) but unsure what size to get.
There seems to be 185mm or 205mm (internal dimensions).
Can anyone tell be by looking at the picture which is best suited (I did measure a brick which is 210mm and try to get the dimensions but don't trust my own judgement).
Thanks for any help you can give.
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