Roto-Gear Operators for the PowerDrive Systems - Both styles available - For the 6" guide bar CN 28 to under CN 36 width and for the 10"  guide bar - CN 36 width and over. 11800740, 10811423, Included are the # 8x1 Phillips flathead wood screws, 11800740, 10811422

Specify Guide Bar Length - 6" or 10" - In "comment section" at Checkout. 

Marvin Awning Window Roto Gear Parts: Awning Operator Replacement Parts for CN 28 to under CN 36 width - Daylight opening width of 22 1/2" to under 30 1/2" -  This 23" guide bar assembly part, #  11101222 (23")

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