This 13in. wall fan from Matthew's Fan Company is a part of the Melody Collection and comes in a Matte Black finish with Select-- blades This wall fan measures 20" in height. 3 blades made from Steel/ABS that rest at a pitch of 31 Degrees when installed. Limited Lifetime Warranty Blades are finished the same as the housing and component parts. At it's lowest setting, you can expect a CFM of 868 at 1213 RPM. At it's highest setting, you can expect a CFM of 1302.65 at 1495 RPM. N/A