Reduce the spread of aerosols while performing with the black Gator Cases Wind / Brass Bell Cover with MERV-13 Filter, a double-layer bell cover for trumpet, cornet, alto/tenor saxophone, bass clarinet, and similar-sized instruments with a bell size from 4 to 5' in diameter.

The elastic closure and cord lock keeps the mask secured to the bell opening. The non-woven polypropylene fabric is reusable and washable. The breathable design provides little to no back pressure or acoustic loss during performances, so you'll sound your best. The cover includes a removable MERV-13 filter for ultimate safety.