Ariens 24 Compact 2 Stage Snow Blower- Model 921021- NEWAriens Compact 24 2 Stage Snow Blower, Model 921021. These are brand new left over models while supplies last! This is the brand new Ariens Compact 24 Blower featuring. Cast Iron Auger Gearbox. NOTE: We have many other Ariens models available. Please call for pricing.