Bonnet 21"ROTARY YARN BONNET LO-PROFile All White / No Green Stripes Low-profile bonnet provides improved operator control on rotary floor machines from 175-300 RPM. Effectively pulls dirt and soil out of carpets. Weight: 1.65 lbs/ EA Compare to current or past OEM associations: Unisan UNSR21 R21 Boardwalk BWKR21 Can ship up to 5 units per carton.