This 5 Pack of 23" MERV 13 Filters are replacement filters for instrument bell covers. Designed to fit 23" bells for added protection, these filters help keep your instrument clean and safe. Filters should be replaced every 1-2 months.
  • Pack of five GBELLCVR2223FILTER MERV 13 replacement filters for wind instrument bell covers
  • For best practices, replace after 1-2 months
  • Do not wash filter

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