Just remove the rubber intake boot but save the oval looking clamp used to secure. Replace with a piece of scotch bright. DG usually has them in a pack of 3 (red, blue & green). Just use one of the 3 pads color your choice, and place over neck and bring clamp over it then tighten. Remove excess with razor blade. It breathes very well and easy to see when it is dirty. Just hose off, don't even have to remove it.
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