FITS MODELS: CCR2000, CCR2450, CCR3600 and CCR3650; Power Clear, 2008-2010, PowerClear 210R, 221QR and 421QR, Power Clear 621R, 621E, 621ZR, 621ZE, 621QZR and 621QZE, 2012-2014, Power Clear 721 R-C, 2014, Quick Clear CCR 6053, 2008-2010, Quick Clear 6053R, 2011-2014 and Quick Clear 6053ES, 2013-2014.