Notched Air-Lift Blade / Scag 481711Pack Size:1Encore 823004, Ferris 1521227, Ferris 1521227S, Ferris 5021227, Ferris A48185, Gravely GDU10231, Lesco 050140, Lesco 50140, Lesco 050125, Lesco 050241, Lesco 50125, Scag 48185, Scag 481711, Scag A48185, Scag A48108, Scag 481707, Scag 482642, Scag 48108, Scag 482878, Simplicity A48185SM, Simplicity 5021227SM, Simplicity A48185, Simplicity 5021227, Worldlawn 823004Aladdin USC5, Dealer Choice 50-2300, Dealer Choice 50-2295, Edgewater 156511, ESF 114-912, Foley/PLP 114-912, Green Line 34943, Green Meadow USCAG19, J. Thomas SG-3442, Laser L1521, Landscaper Express 2295, Landscaper Express 20-0604, Landscaper Express 231002, Landscaper Express 22110, Landscaper Express 2297, Landscaper Express 482878, Landscaper Express 96359, Landscaper Pro 2295, Mow More SC18HL, Mow More EN18HL, NHC SC2803, Oregon 91-623, Prime Line 7-06425, Rotary 3442, Rotary 15-3442, Sunbelt SB-90918, Sunbelt SC-2803, Sunbelt SB-3442, Sunbelt B1PD5008, Sunbelt B1SC2803Encore Requires 2 for 36" deck; 3 for 52" deck; Lesco Requires 2 for 36" deck; 3 for 52" deck; Scag Requires 2 for 36" deck; 3 for 52" deckLength: 18 ", Center Hole: 5/8 ", Width: 3 ", Thickness: .203 ", Requires 2 for 36" deck; 3 for 52" deck