Cheapest ???? Gator Gator Black Bell Mask With MERV 13 Filter, 30-32″ ????

This wind instrument double-layer cover is designed for bell sizes ranging from 30″ to 32″. This bell mask is perfect for the sousaphone and contrabass/subcontrabass tuba. It covers bell openings to greatly reduce the spread of aerosols. This bell mask is made to meet performing arts aerosol study recommendations, and is equipped with a removable MERV 13 filter. The breathable design adds little to no back pressure or acoustic loss during a performance. The elastic closure and cord lock keeps the bell mask secured to the bell opening. Made of non-woven polypropylene fabric, it’s reusable and hand washable. Be sure to measure your instrument bell to guarantee the best fit.Disclaimer: These masks have not been tested by the FDA, CDC or any other official organization to conclude that they prevent the transmission of viruses.