This is correct datadiffusion. We only use UK sourced reeds in our products, from Hamlin and Standex. These high quality components may cost more than the foreign manufacturers, but we keep costs down through efficient mass manufacturing and our other strength over our competitiors is that all of ours are manufactured and assembled here in the UK. I remember seeing a competitors' packaging which clearly states 'Made in China'...
Even with the highest quality however, the nature and fragility of the reeds themselves means that they need very careful handling from receipt by us right through to installation and maintenance.
Despite the tightest QA procedures involving testing every product before they’re shipped, there are always a tiny number that somehow arrive on site in a faulty condition. The nature of the reeds inside means that an invisible crack can test ok at the factory, but as the sealed gas slowly seeps out, it becomes faulty before or even months after install / handover.
As a company we always ask for any faulty units to be returned so we can test them to see what went wrong. We also offer a no quibble replacement arrangement (either through your distributor or direct through us). Unfortunately, as they are often the lowest cost part of the system, they're often binned so we never find out (
Of those that do report back however, we respond very quickly.