Upgrade your GBELLCVR1011BK wind instrument bell cover with this set of five 11-inch MERV 13 filters. These high-quality replacement filters are designed to keep your instrument in top shape. For best results, replace the filters every 1 - 2 months. Remember, these filters are not washable. The exterior dimensions are 11.5 inches in length and width, with a height of 0.02 inches, and they weigh just 0.01 net weight.

Using these filters is easy. Simply remove the old filter from your GBELLCVR1011BK wind instrument bell cover and replace it with a new one from the pack. To keep your instrument performing well, it's best to replace the filters every 1 - 2 months. Don't try to wash the filters as it can damage them. Just keep them in a dry place when not in use, and you'll be all set to enjoy great - sounding music with your instrument.