Diameter: 8-1/2", Length: 18" to 18-1/2" Filter Fits the following models: Altamar, Cameo, Marin, Maxxus, & Optima 1995-1999 Capri 2000; Altamar 1998-99; Rio, Optima, Marin, Maxxus, Capri, Cameo & Calypso I & II 1995-99; Royale & Corum 1995-97 Montego 1997-99; Replaces 6540-482.