Gator GBELLCVR1213BK Black Bell Cover w/ Merv 13 Filter - 12-13 Inches cleaner and features a heavy wall

and features a heavy wall thickness and a medium diameter

are great for CD players

sloping extruded aluminum column

The locking screw provides additional stability

Gator GBELLCVR1213BK Black Bell Cover w/ Merv 13 Filter - 12-13 Inches cleaner and features a heavy wallFeatures: Wind Instrument Double Layer Cover for Bell Sizes Ranging from 12 to 13 Inches Black Color Made to Meet Performing Arts Aerosol Study Recommendations Covers Bell Opening of Instrument to Greatly Reduce the Spread of Aerosols Breathable Design with Little to No Back Pressure or Acoustic Loss During Performance Fits Tuba & Other Large Bell Instruments Equipped with Removable MERV 13 Filter (Do not wash filter. For best practices, replace after