If you look at the photo with the two filters side by side (15) you will notice the difference in the construction of the filters. The one at the top of the photo, looks like the original filter used by the factory. The lower one is a cheaper edition. I don’t know why it was changed but, I have still got the original which I wash with white spirit, then use my wife’s hair dryer to dry it out and use next time it needs changing.
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Great Barr, Birmingham.
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