Screen Brush by Apollo. $4.49. Remove Dust, Dirt & Cobwebs in Seconds. Clean your screens without taking them down. Firm bristles are powerful enough to get the debris out without damaging or tearing the screen. Removes dust, dirt & cobwebs from the inside and outside of screens in seconds. A simple back-and-forth roll of the brush is all it takes. Save time, effort and keep fresh air flowing freely. Plastic w/nylon bristles. 6 1/2" x 6 1/2", 2 1/4" dia. brush.