New Lindahl Specialities Diffusion Effect Filter #2 19-5002 complete with instructions. I have had this since new, purchase but never used. Comes in it's original packaging as shown in my photos.
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From a smoke free environment. Questions welcome before bidding. Please review all my other 600+ listings, most with free shipping. I have a Lindahl Auxiliary Bellows # 43.1500 I will be listing, also new.