This Dual High Output RAD Fan Powerpack Assembly allows true Dual Fan performance in a package the size of others Single shrouded fans. Featuring an aluminum shroud measuring a tidy 24 3/4" wide by 11 1/2" top to bottom and only 3 1/4" in overall depth to offer an adjustable yet precision fit, it uses two IP-68 certified waterproof/dustproof 10" electric fans to provide a powerful one-two 1650 cfm punch to a hot engine. The natural, non-finished aluminum shroud gives the user the freedom to polish, anodize, paint, or simply leave it raw to create a truly custom look at a reasonable price. Fan mounting kit included.