The top of the adaptor connects to your flue liner (bolts tighten to secure). The bottom of the adaptor connects to your vitreous flue pipe (pipe that leaves your stove) using two metal to metal self tapping screws. You will actually need to drill a small pilot hole for the self tappers (due to the stainless being extremely tough). Self tappers and drill bit available in the USEFUL ITEMS pack.
Adaptors sold on this site are sold by the Duraflue people: No weak spots and high grade stainless steel. I have purchased cheap cowls in the past and they can fail within a year so don't just buy on price - it's not worth it!
A quality engineered item and the bolt fitting allowed me to secure the flue pipe at a slight angle which greatly helped with my chimney coming in from the left hand side.
As above really pleased with the products, just wish I'd ordered the flue liner from them in the first place
This is the second time I've ordered twin wall stainless steel from Stove Fitters as fitted a flue at our old house and have just done the same at the new house. Excellent as always, they get everything right and include all the bits to make your life easy. Can't recommend then highly enough and they have great resources and advice on their website.
Great product and really helpful advice given willingly. Highly recommend.
Really excellent in many ways but am still awaiting a refund for a flue pipe I returned. Disappointing as otherwise I would have given 5 stars for service, products and advice.